Source: SecurityWeek

27 stories in the last 30d

DomainAll Cyber AIWindow24h 3d 7d 30d AllIn the wild Important only Show duplicates

CategoryAll Exploit / PoC 20 AI safety & security 12 Industry 10 Data breach 9 Vulnerability 7 Threat actor 4 Advisory 2 AI industry 2 Phishing & fraud 2 Policy & legal 2 Research 1 Malware 1 Tools 1 AI policy 1

SeverityAll critical 12 high 27 medium 13 low 1 info 21 source: SecurityWeek ✕

$1 Million Sandbox Challenge Uncovers Linux Kernel Flaws

Vercel's $1M sandbox challenge surfaced two Linux kernel networking defects—one leaking host kernel memory, one crashing hosts—with CVEs pending.

Vercel ran a two-week, $1 million sandbox escape challenge (Aug 18–Sep 1) on its Firecracker-based microVM sandbox, receiving 1,285 reports and committing ~$325k in payouts (1 Critical, 7 High, 15 Medium, 49 Low validated so far). No attacker accessed real customer data. The most important filing found two independent Linux kernel networking stack defects—one leaks host kernel memory, the other deterministically crashes the host—with wide implications for cloud providers isolating workloads via the same kernel layer. Fixes are under private review with CVEs pending; Vercel also plans to open-source its agentic report-triage agent built on the Eve framework running Kimi K3.

SecurityWeek16:00 UTC · 7h agoVulnerability

Texas Utility CenterPoint Energy Confirms Breach After Hacker Leaks Data

CenterPoint Energy confirmed hackers stole customer personal data from an external-facing system after a forum leak of 7.5 million records.

CenterPoint Energy, a Houston-based utility serving roughly 7 million customers across Indiana, Minnesota, Ohio and Texas, told the SEC that an unauthorized third party obtained customer personal information through an external-facing system. On September 12 a hacker claimed to have stolen nearly 7.5 million records and posted a 2.5 GB archive on a cybercrime forum, threatening to attack main infrastructure next. The company says electric and gas delivery is unaffected and it expects no material impact. Earlier 2024 leak claims were attributed to Cl0p's 2023 MOVEit campaign via a third party.

SecurityWeek15:30 UTC · 7h agoData breach

240,000 Hit by Data Breach at Japan’s Digital Agency

Japan's Digital Agency says hackers exploited a VPN flaw and a maintenance account to steal ~246,000 records on 240,000 people.

Japan's Digital Agency disclosed a breach of its Government Solution Service (GSS) affecting roughly 240,000 individuals, discovered in late June. Attackers exploited a publicly disclosed vulnerability in a VPN product and used a maintenance and operations employee's account to access over 246,000 records, including names (~236,000), email addresses (~231,000), phone numbers (~94,000), and addresses (~1,000). The agency blocked external access to the affected server, suspended the account, and said no ID numbers or financial account data were compromised.

SecurityWeekupdated 14:43 UTC · 8h agofirst 11:45 UTC · 11h agoData breach in the wild 2 sources

Thai Broadband Provider Hacked via Fortinet Vulnerability

Hackers exploited Fortinet CVE-2024-21762 RCE to breach Thai broadband provider 3BB, deploying MeshCentral backdoors and credential-harvesting tools across its network.

Hunt.io uncovered an intrusion staging directory in Thailand containing 298 files of custom tooling built for Triple T Broadband (3BB) and its former owner Jasmine. Initial access came via fingerprinting a FortiGate SSL-VPN appliance and exploiting CVE-2024-21762 for remote code execution, after probing CVE-2018-13379, CVE-2022-42475, and CVE-2023-27997. The actor also probed F5 BIG-IP for CVE-2021-22986, CVE-2022-1388, and CVE-2023-46747, escalated privileges with PwnKit and Dirty COW, used MeshCentral as a C2 backdoor, harvested SSH/database/SNMP/Radius credentials, deployed PHP web shells, and ran cleanup scripts to hide the intrusion.

SecurityWeek13:33 UTC · 9h agoThreat actor in the wildCVE-2018-13379 CVE-2022-42475 CVE-2023-27997+4 CVEs

Hacked HBO Max Reddit Account Used for Malware Delivery via ClickFix Attack

Attackers hijacked HBO Max's verified Reddit account to push 108 malicious ads delivering AMOS and Amatera infostealers via ClickFix prompts.

Threat actors compromised the official u/hbomax Reddit account and ran 108 malicious ads over 48 hours in a campaign tracked as PasteSwitch, directing users to a fake hbomaxx[.]us site. ClickFix prompts tricked macOS users into running curl | zsh payloads (MacSync, AMOS Helper, fake wallets) and Windows users into executing MSHTA/PowerShell delivering Amatera Stealer. AnimateClipper and ZigClipper clipboard hijackers swapped cryptocurrency addresses using a blockchain-hosted C&C active since early 2026. Reddit suspended the ads after notification.

SecurityWeekupdated 11:51 UTC · 11h agofirst 09:09 UTC · 14h agoMalware in the wild 7 sources

Personal, Financial Info Exposed in Revolut Data Breach

Revolut says a scammer using a legitimate government agency email domain obtained affected users' PII, ID copies, selfies and full financial records.

Revolut, a London-based neobank serving over 80 million users in 160 countries, notified affected users that personal and financial data was exposed to a third party posing as a government agency. Exposed data included names, addresses, dates of birth, driver's licenses, passports, verification selfies, IBANs, account statements, withdrawal records and full transaction history including Bitcoin. Revolut blocked the attacker's email and notified the relevant agency, regulators and law enforcement, but did not disclose how many individuals were impacted.

SecurityWeekSep 14, 13:03 UTC · 1d agoData breach

Telus Warns Customers of Account Breaches

Telus warns customers that attackers used compromised credentials to access accounts and personal data between February 2025 and June 2026.

Telus, one of Canada's largest telecom providers, is notifying customers that attackers accessed consumer telecom accounts using compromised credentials between February 2025 and June 2026. Exposed data includes names, account numbers, phone numbers, billing addresses, email addresses, partial payment card numbers, subscription details, and payment history. The stolen information was used to push customers toward competitors and to make unauthorized service changes; the number of affected accounts is undisclosed. Telus reset credentials, added enhanced monitoring, notified Vancouver police, and offered identity theft protection; the incident may be credential stuffing and follows a ShinyHunters-claimed breach of subsidiary Telus Digital.

SecurityWeekSep 14, 09:56 UTC · 1d agoData breach in the wild

Check Point Patches Critical VPN Vulnerabilities

Check Point patches two critical unauthenticated RCE flaws (CVE-2026-85102, CVE-2026-85103) in VPN gateways and firewalls; no exploitation observed.

Check Point released patches for CVE-2026-85102 and CVE-2026-85103, two critical vulnerabilities (CVSS 9.8) enabling unauthenticated remote code execution in products using VPN functionality. CVE-2026-85102 involves improper validation of certificate data during VPN negotiation, while CVE-2026-85103 is a heap overflow in the VPN certificate ASN.1 decoding flow. Updates cover versions R82.10, R82, and R81.20; manually defining VPN rules is offered as a mitigation, though it does not apply to locally managed Spark Firewall instances. Check Point discovered both flaws internally and reports no evidence of exploitation in the wild.

SecurityWeekupdated Sep 14, 09:43 UTC · 1d agofirst Sep 11, 11:10 UTC · 4d agoVulnerability 9 sources CVE-2026-85102 CVE-2026-85103 CVE-2026-16232+1 CVEs1

Three JFrog Artifactory Flaws Exploited for Backdoor Deployment

Wiz reports multiple actors chaining three JFrog Artifactory auth flaws to gain admin and deploy backdoors; CISA added all three CVEs to KEV.

Wz reports threat actors exploiting CVE-2026-42018, CVE-2026-42016, and CVE-2026-82329 in self-hosted JFrog Artifactory instances to bypass authentication and gain administrative privileges. Between August 15 and September 8, 2026, multiple actors chained CVE-2026-42018 and CVE-2026-42016 to mint anonymous-user tokens, escalate privileges, create persistent admin accounts, install malicious plugins for code execution, and drop second-stage payloads. From early September, CVE-2026-82329 was exploited for configuration exfiltration, cluster key theft, token minting, and SSH key attachment to attacker-created accounts. CISA added all three CVEs to its KEV catalog, giving federal agencies two weeks under BOD 26-04 to patch to versions 7.161.20, 7.146.38, 7.133.29, 7.125.20, 7.117.28, or 7.111.21.

SecurityWeekSep 14, 09:27 UTC · 1d agoExploit / PoC in the wild 7 sources CVE-2026-42016 CVE-2026-42018 CVE-2026-82329

Anthropic Says Russian Hackers Used Claude AI to Automate Malware Evasion

Anthropic disrupted Midnight Blizzard campaigns where AI agents automatically rebuilt malware to evade detection, targeting 20+ government and defense organizations.

Anthropic's threat intelligence report documents the Russian state-nexus actor Midnight Blizzard using Claude to automatically monitor, modify, and redeploy malware until it evaded security products. The campaign hit more than 20 organizations, including Ukrainian and European government ministries, defense bodies, embassies, and think tanks, with mailbox theft from two drone component manufacturers and compromise of hotel guest Wi-Fi via DNS hijacking. The report also describes financially motivated groups GTG-50020 and GTG-50021 targeting AI credentials, including a prompt-injection attack on an automated evaluation sandbox that yielded production API keys and attempts to reach a pre-release Claude model across roughly 30 AI companies.

SecurityWeekupdated Sep 12, 10:30 UTC · 3d agofirst Sep 11, 08:47 UTC · 4d agoThreat actor in the wild 11 sources4

PaperCut Flaws Exploited in AI-Powered Attacks

GreyNoise says a Russian-speaking actor used AI to build and deploy exploits hitting 440 PaperCut NG/MF deployments across 395 organizations in 48 countries.

Two PaperCut NG/MF zero-days, CVE-2026-82078 and CVE-2026-81578, disclosed August 27 and patched August 28, enable unauthenticated authentication bypass and remote code execution. GreyNoise observed a Russian-speaking threat actor using AI to orchestrate attacks against 440 deployments in 48 countries, including 204 education-sector organizations, achieving domain admin at 12 victims. Attack paths included harvesting LSASS memory and registry secrets, mounted NoPac attacks, and adding accounts to Domain Admins, with AI automation shortening compromises to minutes or seconds.

SecurityWeekupdated Sep 11, 10:05 UTC · 4d agofirst Sep 11, 08:18 UTC · 4d agoExploit / PoC in the wild 9 sources CVE-2026-82078 CVE-2026-81578

New ‘ShieldCrash’ Zero-Day Exploit Targets Microsoft Defender

Researcher Nightmare Eclipse released ShieldCrash, a Microsoft Defender zero-day PoC bypassing ShieldBreak patches to gain System privileges on Windows.

The researcher known as Nightmare Eclipse released a PoC zero-day exploit dubbed ShieldCrash against Microsoft Defender on fully patched Windows systems. The exploit grants arbitrary file read with System privileges and can be used to drop the SAM database. It bypasses Microsoft's September 3 fixes for ShieldBreak (CVE-2026-69414), which itself bypassed patches for the RoguePlanet race condition (CVE-2026-50656). Microsoft has been contacted for comment and has not yet responded.

SecurityWeekupdated Sep 10, 12:18 UTC · 5d agofirst Sep 10, 07:09 UTC · 5d agoExploit / PoC 8 sources CVE-2026-50656 CVE-2026-694141

Fortinet Code Execution Flaw Exploited in PivotC2 RAT Attacks

Threat actors exploit Fortinet heap-based buffer overflow CVE-2025-25249 to deploy PivotC2 RAT, infecting 178 devices and exfiltrating data from US targets.

SOCRadar reports exploitation of an unauthenticated remote code execution vulnerability, CVE-2025-25249 (CVSS 7.4), patched in January in FortiOS and FortiSwitchManager. Attackers scanned over 30,000 IP addresses, infected 178 devices with PivotC2 RAT, and at least two intrusions resulted in data exfiltration, primarily targeting US entities. SOCRadar attributes attacks to a likely Russian-speaking cybercrime actor and suggests the RAT was AI-assisted, in use since July 2026. CISA added the CVE to the KEV catalog with a three-day BOD 26-04 patch deadline for federal agencies.

SecurityWeekupdated Sep 10, 11:26 UTC · 5d agofirst Sep 10, 06:33 UTC · 5d agoExploit / PoC in the wild 4 sources CVE-2025-252491

4.1 Million Impacted by AdaptHealth Data Breach

AdaptHealth disclosed a breach affecting 4,115,802 people after a socially engineered attacker stole health and insurance data from cloud-based patient systems.

A threat actor used social engineering to hijack a user session at a third-party contractor and gained access to AdaptHealth cloud applications, including patient management and document storage systems, in early June. Names, contact and demographic information, and health and health insurance data were exfiltrated; Social Security numbers and financial information were not affected. AdaptHealth reported 4,115,802 affected individuals to HHS, whose breach portal listed the incident this week; Baylor Genetics separately reported 2,810,878 individuals affected in a related June healthcare breach.

SecurityWeekSep 10, 11:20 UTC · 5d agoData breach 2 sources

Android’s September 2026 Updates Patch 180 Vulnerabilities

Google's September 2026 Android security updates patch 180 vulnerabilities including critical Wi-Fi memory corruption flaw CVE-2026-28662.

Google released September 2026 Android security updates addressing 180 vulnerabilities across two patch levels. The 2026-09-01 level fixes 95 bugs including 23 critical System component flaws enabling RCE, EoP, and DoS. The 2026-09-05 level addresses 85 additional defects in kernel and vendor components including a Wi-Fi memory corruption flaw (CVE-2026-28662) enabling remote code execution without privileges or user interaction.

SecurityWeekSep 9, 16:30 UTC · 6d agoAdvisory CVE-2026-28662

Fortinet Patches Critical Vulnerabilities in FortiMonitorOnSight, Chrome Extension

Fortinet patched 10 vulnerabilities including two critical authentication flaws, CVE-2026-84390 (CVSS 9.6) and CVE-2026-84388 (CVSS 9.1), in FortiMonitorOnSight and the FortiPAM Chrome extension.

Fortinet's September patch release fixes CVE-2026-84390, a sensitive-information issue in the FortiMonitorOnSight web portal that lets unauthenticated attackers bypass authentication with forged or reused JWTs. CVE-2026-84388 is an improper authentication flaw in the Fortinet Privileged Access Agent Chrome extension that can allow attackers to proxy a user's browser traffic via a malicious website, requiring upgrades to both FortiPAM 1.9.1/1.8.4 and extension 8.0.1.123+. High-severity information disclosure in FortiSandbox (CVE-2026-26084) and man-in-the-middle risk in the FortiOS/FortiProxy Agentless ZTNA portal (CVE-2026-84393) were also fixed, alongside medium/low issues across FortiManager, FortiAnalyzer, FortiSOAR, FortiClient, FortiSIEM and others. Fortinet did not indicate any of the flaws are being exploited in the wild.

SecurityWeekSep 9, 14:33 UTC · 6d agoVulnerability 2 sources CVE-2026-84390 CVE-2026-84388 CVE-2026-26084+1 CVEs

ICS Patch Tuesday: Schneider Electric, Siemens Fix Critical Flaws

September ICS Patch Tuesday brings critical fixes from Schneider Electric, Siemens, and Aveva, including CVSS 9.2 authentication flaw CVE-2026-3869 in Modicon M580 controllers.

Schneider Electric's September advisories include a critical authentication vulnerability, CVE-2026-3869 with a CVSS score of 9.2, in Modicon M580 and Modicon M580 Safety controllers, plus high-severity bugs in PowerLogic T300 and EcoStruxure IT Data Center Expert. Siemens published nine new advisories, four rated critical across Reyrolle 7SR5, Open Interface Services, Industrial Edge Management, and SIMOVE Fleetmanager and SIPLANT, and began rolling out fixes for CVE-2026-31431, a 7.8-rated Linux kernel flaw enabling root shell access. Aveva disclosed four flaws in Pipeline Integrity Monitor's PIMBoards, including a hardcoded encryption key and MD5-hashed passwords, plus an unsafe deserialization issue in Enterprise SCADA. Rockwell Automation separately issued nine advisories covering RSLinx Classic and multiple controller products.

SecurityWeekSep 9, 10:49 UTC · 6d agoVulnerability CVE-2026-3869 CVE-2026-31431

Ivanti Patches Critical Flaws Across Enterprise Security Products

Ivanti released September updates fixing six critical RCE flaws in Neurons for ITSM plus authentication bypasses in Sentry and EPMM; no exploitation seen.

Ivanti's September 2026 updates fix eight flaws in Neurons for ITSM, six of them critical remote code execution bugs with CVSS scores up to 9.9, including missing authorization issues (CVE-2026-12647, CVE-2026-12645, CVE-2026-12646) and deserialization flaws (CVE-2026-12650, CVE-2026-12744, CVE-2026-12745). Sentry releases R10.8.2, R10.7.3, and R10.6.4 patch CVE-2026-83527, an unauthenticated high-severity authentication bypass, while EPMM versions 12.10.0.0, 12.9.0.2, and 12.8.0.4 fix the authenticated bypass CVE-2026-18851. Ivanti says it is not aware of any exploitation in the wild. Citrix separately patched two medium-severity flaws in Workspace app for Windows.

SecurityWeekSep 9, 10:28 UTC · 6d agoVulnerability CVE-2026-12647 CVE-2026-12645 CVE-2026-12646+7 CVEs1

Chrome 153 Patches Seventh Zero-Day of 2026

Google patches Chrome V8 zero-day CVE-2026-87491, exploited in the wild, marking the seventh exploited Chrome zero-day of 2026, in an update fixing 230 flaws.

Google released Chrome 153 with fixes for 230 vulnerabilities, including CVE-2026-87491, a medium-severity out-of-bounds write in the V8 JavaScript and WebAssembly engine that Google says is being exploited in the wild. It is the seventh zero-day patched in Chrome in 2026, following CVE-2026-2441, CVE-2026-3909, CVE-2026-3910, CVE-2026-5281, CVE-2026-11645 and CVE-2026-85046. The update also fixes five critical bugs (four in WebGL, one in Cast), 41 high-severity defects, and more than 180 medium/low issues, rolling out as 153.0.8010.36/.37 for Windows/macOS and 153.0.8010.36 for Linux.

SecurityWeekSep 9, 09:45 UTC · 6d agoExploit / PoC in the wildCVE-2026-87491 CVE-2026-2441 CVE-2026-3909+4 CVEs

Microsoft Patches Record 974 Vulnerabilities, Including Two Exploited Zero-Days

Microsoft's September 2026 Patch Tuesday fixes a record 974 CVEs, including two Windows zero-days exploited in the wild for privilege escalation.

Microsoft patched 974 vulnerabilities, its largest Patch Tuesday ever, including CVE-2026-85880, a heap buffer overflow in Windows ALPC allowing AppContainer sandbox escape to System, and CVE-2026-81963, a link-following flaw in the Windows Update Stack enabling local privilege escalation. Both were exploited as zero-days before the patch. ZDI's Dustin Childs says 20 of the fixed flaws are wormable, enabling unauthenticated remote code execution. The release also covers 723 Windows flaws and 222 Office bugs, plus fixes in Exchange, SharePoint, SQL Server, Azure and Exchange Server RCE (CVE-2026-55007).

SecurityWeekSep 8, 19:20 UTC · 7d agoExploit / PoC in the wildCVE-2026-85880 CVE-2026-81963 CVE-2026-55007+5 CVEs

Hackers Return $263 Million Stolen From Liquid Network

Hackers drain roughly 4,000 BTC (~$320M) from Liquid Network federation wallet, then return 3,400 BTC with ~598 BTC still outstanding.

Attackers withdrew about 4,000 Bitcoin (roughly $320 million) from the Liquid Network federation wallet, which held approximately 4,200 BTC, via the SideSwap Peg-out Authorization Key without that key being compromised. Blockstream disabled nodes and suspended transactions after disclosing the heist on Sunday. Alleged white-hat hackers returned 3,400 BTC (~$262.6M) on Monday, demanding the underlying bug be patched before releasing the remaining ~598 BTC (~$47M). The network remains paused while fixes and a safe restart are prepared.

SecurityWeekSep 8, 16:35 UTC · 7d agoData breach in the wild

SAP Patches Critical Extended Passport Processing Vulnerability

SAP patches CVSS 10.0 flaw CVE-2026-44756 (OVERPASS) enabling unauthenticated RCE in S/4HANA and NetWeaver, plus three other criticals; no in-the-wild exploitation reported.

CVE-2026-44756 is a CVSS 10.0 memory corruption flaw in Extended Passport (EPP) deserialization, triggered when a user session opens across web, SAP GUI, and RFC vectors. Exploitation yields command execution as the SAP OS account, database credential and password hash recovery, session reading, and data or binary modification; affected products include S/4HANA, ERP/ECC, NetWeaver, Web Dispatcher, and BW/4HANA. Three other criticals were patched: CVE-2026-58240 (S4GET, missing authentication affecting all S/4HANA 2025 and earlier releases), CVE-2026-76969 (CAP credential disclosure), and CVE-2026-66768 (NetWeaver access control). Onapsis and SAP report no indicators of in-the-wild exploitation.

SecurityWeekSep 8, 14:55 UTC · 7d agoVulnerability 2 sources CVE-2026-44756 CVE-2026-58240 CVE-2026-76969+1 CVEs

Party’s Over for Crypto Scammers Who Went on a Spending Spree After a $240 Million Bitcoin Theft

Malone Lam's plea hearing approaches in the $240 million bitcoin social engineering theft; the case highlights surging crypto fraud and limited enforcement.

Malone Lam, accused of organizing a social engineering attack that stole over $240 million in bitcoin (4,100+ BTC) from a Washington, D.C. resident in August 2024, has a plea agreement hearing set. Callers impersonating Google and Gemini staff tricked the victim into revealing security codes. Lam and 17 co-defendants spent lavishly before FBI arrests; crypto investment fraud complaints to the FBI rose nearly 50% in 2025 while DOJ disbanded its crypto crimes unit.

SecurityWeekSep 8, 13:00 UTC · 7d agoPolicy & legal

Mathspace Data Breach Exposes Over 1 Million People

Mathspace breach exposed data of 1,079,819 Australian and New Zealand users via exploited Metabase zero-day CVE-2026-72898; ShinyHunters claimed responsibility.

Mathspace disclosed a breach affecting 1,079,819 students, teachers, staff, and parents in Australia and New Zealand. Attackers exploited the Metabase SQL injection zero-day CVE-2026-72898 (CVSS 10), patched August 6, and accessed Mathspace's self-hosted instance from August 10; ShinyHunters claimed the Metabase hacks. Exposed data includes names, usernames, emails, and login dates; no passwords, academic records, or credentials were taken.

SecurityWeekSep 8, 10:47 UTC · 7d agoData breach in the wildCVE-2026-72898

Nightmare Eclipse Drops CrowdStrike, Nvidia, Avast Zero-Day Exploits

Researcher Nightmare Eclipse released working zero-day PoCs for Avast, CrowdStrike Falcon, and Nvidia, prompting a Gen patch, CrowdStrike mitigation, and Nvidia investigation.

Security researcher Nightmare Eclipse released three zero-day exploits within a short window: PrettyPrague targeting the Avast sandbox for full system privileges (possibly affecting other GenDigital products including AVG and Norton), FalconFlank exploiting CrowdStrike Falcon Sensor's Office malicious macros remediation feature for privilege escalation, and GreenSection targeting an out-of-bounds memory write in a shared global memory section used by Nvidia user-mode components. GenDigital said it has fixed the Avast issue; CrowdStrike advised disabling the Microsoft Office File Suspicious Macro Removal policy setting; Nvidia said it is actively investigating the PoC. Kevin Beaumont reported that the Avast, CrowdStrike, and Kaspersky exploits work. The researcher previously released the HardBreacher privilege escalation zero-day in Kaspersky endpoint security, patched August 31.

SecurityWeekSep 7, 12:15 UTC · 8d agoExploit / PoC

North Korean Hackers Deploy New Linux Espionage Toolkit

Rapid7 says North Korea-aligned actors use a new Linux espionage toolkit (ted HAProxy backdoor, CurlRAT) against South Korean automotive and media targets.

Rapid7 reports a stealthy Linux framework comprising a custom HAProxy backdoor ('ted'), trojanized system binaries (agetty, atd, crond, polkitd, sshd), an SSH keylogger, and CurlRAT that polls C&C every 12 hours. Initial access came via a Groupware login portal flaw, with credential harvesting enabling lateral movement to internal systems. The toolkit supports long-term surveillance, HTTP traffic interception/injection, and drive-by downloads, likely in use since late 2024. Infrastructure and artifacts overlap Operation SyncHole, suggesting Lazarus or APT37 involvement.

SecurityWeekSep 7, 12:12 UTC · 8d agoThreat actor in the wild1

Modified ScreenConnect Clients Used in Worm-Like Campaign

Huntress warns of worm-like attacks using modified ScreenConnect clients to spread VBScript payloads; ConnectWise issued an advisory.

Campaigns starting in late August use social engineering, including Quick Assist abuse, to install rogue ScreenConnect clients that spawn wscript.exe and deploy four VBScript files for reconnaissance, staging, and PowerShell execution. The attackers persist via User Run Keys, attempt UAC bypass, install UltraViewer, and propagate the VBScript chain to other connected ScreenConnect endpoints. ConnectWise published an advisory about a file transfer behavior issue affecting cloud and on-premises ScreenConnect, with a CVE identifier and fix expected within a week; it recommends disabling file transfer meanwhile.

SecurityWeekSep 7, 11:45 UTC · 8d agoExploit / PoC in the wild