Product

ScreenConnect

4 mentions in 7 days · 13 in 30 days · 13 total · first seen Aug 31, 2026 · last 4d ago

Timeline13 articles

ConnectWise patches critical ScreenConnect authentication failure after five days

ConnectWise patched ScreenConnect flaw CVE-2026-84869 five days after warning files could be transferred and executed via active sessions without authorization.

ConnectWise released ScreenConnect client version 26.6.5 and later to fix CVE-2026-84869, an authentication failure in ConnectWise Remote Access allowing unauthorized file transfer and execution through active remote sessions. The company warned customers on September 3 and advised admins to remove the TransferFiles permission from users with open sessions as an interim mitigation. The advisory does not state that exploitation has been observed.

CSO Onlineupdated Sep 14, 08:25 UTC · 1d agofirst Sep 11, 16:17 UTC · 4d agoVulnerability 3 sources CVE-2026-84869

ConnectWise security advisory (AV26-903)

ConnectWise patches ScreenConnect CVE-2026-84869, reported exploited in the wild; administrators should update to 26.6.5.

ConnectWise shipped ScreenConnect 26.6.5 to fix a vulnerability tracked as CVE-2026-84869 affecting versions prior to 26.6.5. Open-source reporting indicates the flaw is being exploited in the wild. The Canadian Centre for Cyber Security issued advisory AV26-903 urging users and administrators to apply the patch.

Canadian Centre for Cyber Securityupdated Sep 14, 08:25 UTC · 1d agofirst Sep 9, 19:46 UTC · 6d agoAdvisory in the wild 3 sources CVE-2026-84869

Grand Theft Auto VI hype leads to malware

Fake GTA6 ISO downloads spread via SEO poisoning, torrents, and forums deliver NJRAT, DCRAT, an infostealer, and wiper ransomware.

Huntress analyzed a malicious ISO masquerading as a leaked Grand Theft Auto VI build; there is no official GTA6 demo or leaked playable copy. The fake gta6installer.exe shows a Russian 'license' message asking victims to email the attacker if the crack fails, then drops GTA6-branded files into %TEMP%. It installs multiple repurposed NJRAT copies (2023-era files) connecting to AWS-hosted IPs 35.157.111.131, 3.68.56.232, 3.67.15.169 and an ngrok tunnel, plus DCRAT communicating with a0700877.xsph.ru (141.8.197.42). The bundle also includes an infostealer and ransomware used as a wiper, in what appears to be an opportunistic, everything-at-once campaign.

Huntressupdated Sep 10, 14:23 UTC · 5d agofirst Sep 9, 14:00 UTC · 6d agoMalware in the wild 4 sources

Phishing Attacks Serve Browser-in-the-Browser Pages, Rogue RMM Persistence

Phishing emails with browser-in-the-browser fake Adobe pages trick users into installing rogue ScreenConnect clients granting persistent remote access.

Huntress SOC investigated two August incidents where phishing links led to fake CAPTCHA checks and Adobe PDF Reader lures rendered as browser-in-the-browser (BiTB) pages spoofing legitimate domains like get.adobe.com. Victims downloaded what they believed was Acrobat Reader but actually installed ScreenConnect.ClientSetup.exe from attacker infrastructure, yielding two rogue ScreenConnect clients with service-based persistence. The attacker used cmd.exe and curl to stage a second client connecting to 144.172.115.59, leveraged a ScreenConnect Trial Relay domain for stealth, and ran HideCursor.exe as a defense-evasion binary. Incident 2 arrived via AT&T Office@Hand (RingCentral), with both chains stopped before broader impact.

HuntressSep 9, 13:00 UTC · 6d agoPhishing & fraud in the wild

Attackers Use Multi-Hop Google Redirects for Phishing Campaign

Threat actors chain multiple legitimate Google service redirects to evade detection and deliver credential harvesting or ScreenConnect remote access tooling.

Threat actors are abusing multiple legitimate Google services to build multi-hop redirect chains that obscure the final destination and bypass reputation-based filtering. The campaign culminates in credential harvesting pages or silent installation of the ScreenConnect remote access tool. Defenders should watch for links that traverse trusted Google domains before landing on malicious endpoints.

Dark ReadingSep 8, 21:03 UTC · 7d agoPhishing & fraud in the wild

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

Rogue ScreenConnect Clients Spread Four-Stage VBScript Chain to Newly Connected Hosts

Huntress says rogue ScreenConnect clients spread a four-stage VBScript chain delivering backdoors, privilege-escalation tools, or an XMRig miner to newly connected hosts.

Huntress identified three unrelated August 2026 incidents using a Quick Assist tech-support scam, a phishing-delivered MSI installer, and a fake Geek Squad refund form to install rogue ScreenConnect clients. Each client repeatedly spawned wscript.exe to run 1.vbs through 4.vbs, which profiled the host, enumerated installed security products, and downloaded stage-specific payloads from Dropbox. Depending on detected state, payloads included a user-level ScreenConnect backdoor, UAC-bypass privilege escalation tooling, or tunneling utilities with an XMRig cryptocurrency miner. Infected clients re-infected newly connected hosts, creating worm-like propagation, and ConnectWise issued an advisory about affected file transfer behavior in ScreenConnect.

The Hacker NewsSep 7, 11:36 UTC · 8d agoMalware in the wild

ConnectWise warns of new ScreenConnect flaw without patch

ConnectWise warns of an unpatched ScreenConnect flaw affecting file transfer in support sessions and shares interim mitigations for MSPs.

ConnectWise disclosed a new ScreenConnect Remote Access vulnerability affecting file transfer behavior in both cloud and on-premises deployments; no CVE ID or patch is available yet, with a fix planned later this week. The vendor published temporary mitigation steps that remove TransferFiles permissions from session groups across all roles. Shadowserver tracks nearly 6,000 internet-exposed ScreenConnect instances. Previous ScreenConnect flaws, including CVE-2024-1709, were exploited by ransomware gangs and North Korea's Kimsuky, and three ScreenConnect vulnerabilities are on CISA's actively exploited catalog.

BleepingComputerSep 7, 10:06 UTC · 8d agoVulnerability CVE-2024-1709 CVE-2025-3935 CVE-2026-35641

Attackers use rogue ScreenConnect clients to spread malware

Attackers deploy rogue ScreenConnect clients that spread VBScript malware to newly connected machines while ConnectWise patches a file-transfer flaw.

ConnectWise confirmed a file transfer flaw in ScreenConnect affecting both Cloud and On-Premise deployments, with a CVE identifier and official fix promised within the week; administrators can mitigate immediately by disabling TransferFiles (or TransferFilesInSession) in each role. Huntress documented incidents where social engineering installs rogue ScreenConnect clients that spawn Windows Script Host processes running four VBScript files (1.vbs-4.vbs), add a WindowsServiceHost registry Run key, and propagate to newly connected endpoints. Payloads enabled host profiling, persistence, additional ScreenConnect installs, tunneling, security-control changes, and cryptocurrency mining. ConnectWise has not confirmed a technical link between the flaw and this campaign.

Help Net SecuritySep 7, 00:00 UTC · 8d agoExploit / PoC in the wild

ThreatsDay: CEO Phishing Kits, 5K Dropbox Account Hacks, OAuth Traps + 17 More Stories

Microsoft warns of Teams IT-impersonation intrusions deploying Node.js implants; Spring Ring vishing hit 150+ employees across 10 companies; The Gentlemen ransomware claims 683 victims.

Microsoft warned of a human-operated campaign abusing Teams external collaboration to impersonate IT help desk staff, deploy malicious MSI packages staging Node.js runtimes and obfuscated JavaScript implants, then pivot to domain controllers over WinRM. Unit 42 documented the Spring Ring vishing operation targeting over 150 employees across at least 10 companies using 26 attacker identities, including an NTLM relay variant against domain controllers. Sophos reported The Gentlemen ransomware (Gold Sherwood) reached 683 total victims by end of July 2026, adding 169 in July, with a playbook using BYOVD-based EDR killers and backup tampering. Group-IB found the Outsider phishing-as-a-service platform created 700+ new phishing pages within a month despite law enforcement takedowns.

The Hacker NewsSep 3, 18:02 UTC · 12d agoThreat actor in the wild1

Release Notes: Faster TI Investigations, Fresh Threat Research, and 650+ Threat Coverage Updates

ANY.RUN August release adds TI Lookup connections view, 81 behavior signatures, 16 YARA rules, 559 Suricata rules, and three new threat intelligence reports.

ANY.RUN released August product updates expanding its Threat Intelligence Lookup with a Connections block for pivoting between related observables (domains, IPs, URLs), JSON export for retrohunting and SIEM/NDR integration, and hidden whitelisted data by default. Detection coverage grew with 81 new behavior signatures, 16 YARA rules, and 559 Suricata rules covering malware execution, phishing, and C2 traffic. Three new Threat Intelligence Reports cover a US-focused RMM phishing campaign across 46 countries, the Mirage2FA phishing-as-a-service targeting Microsoft 365 (1,249 sandbox sessions, 9,332 potential compromise events), and a threat brief on OVERLORD RAT, CRPX0, and TRIBACK loader.

ANY.RUNSep 3, 09:11 UTC · 12d agoTools1

Rogue ScreenConnect Installations Across Unrelated Hosts Suggest Worm-Like Activity

Huntress observed rogue ScreenConnect deployments with worm-like VBScript propagation across unrelated organizations, prompting a ConnectWise advisory on file transfer behavior.

Huntress identified multiple incidents in late August 2026 where social engineering led to rogue ScreenConnect remote access clients deployed on victim machines, which then spawned wscript.exe to run four VBScript payloads (1.vbs through 4.vbs) for profiling, telemetry collection, and persistence via a WindowsServiceHost Run key. Modified ScreenConnect clients propagated the VBScript chain to connected endpoints, creating worm-like spread. ConnectWise published an advisory on September 3, 2026, confirming an issue affecting file transfer behavior in both cloud and on-premises ScreenConnect deployments, with a CVE and fix expected within the week; partners were advised to review and disable TransferFiles permissions in the interim.

HuntressSep 3, 08:50 UTC · 12d agoExploit / PoC in the wild

Daisy-Chaining Trust: Investigating Faronics Deploy Abuse

Actors abuse Faronics Deploy in phishing campaigns to run PowerShell and deploy ScreenConnect while evading detection with trusted tools.

Huntress investigated attacks in which threat actors abuse Faronics Deploy, a legitimate remote management tool, as part of phishing-driven intrusions. The chain uses the trusted deployment tool to launch PowerShell commands and deploy ScreenConnect for remote access. Leveraging signed, legitimate software helps the actors blend in and evade detection.

HuntressAug 31, 21:00 UTC · 15d agoThreat actor in the wild

Related CVEsby mentions

CVE-2026-848699.9<1%
Missing authorization in ScreenConnect client allows unauthorized file execution
CVE-2026-84869 is a critical authorization flaw (CWE-862 missing authorization, CWE-269 improper privilege management) in the ScreenConnect client, the endpoint-side agent of ConnectWise's widely used remote access and remote support platform, in which files can be transferred to a machine and executed during an active remote session without the expected authorization or without confirmation by the Host (technician). It is triggered in certain circumstances during an active session, with a network attack vector, low attack complexity, low privileges required, and no user interaction per the CVSS 3.1 vector. An actor who obtains or already holds access to a session context could thereby push and run files on the managed endpoint, potentially achieving code execution with high confidentiality, integrity, and availability impact (CVSS 3.1 score 9.9, scope changed). Only endpoints running the ScreenConnect client are affected; ScreenConnect servers are not impacted, and the affected client version ranges are governed by ConnectWise security advisory AV26-903 (not enumerated in the available data). The flaw is not currently known to be exploited: it is not in CISA KEV, no public proof of concept is known, and EPSS assigns a modest 0.4% probability of exploitation within the next 30 days (32nd percentile).
· ConnectWise ScreenConnect client (endpoint agent) KEVmass
CVE-2024-170910.0100%
Authentication Bypass in ConnectWise ScreenConnect Creates Rogue Admin Accounts
ConnectWise ScreenConnect (ConnectWise Control), a widely used remote-access and remote-monitoring tool, contains an authentication bypass (CWE-288) in its management interface. An attacker needs only network access to the management interface to trigger the flaw, with no valid credentials or user interaction required. A successful attacker gains administrative control of the ScreenConnect server by creating a new administrator-level account, providing a foothold that has already been used in ransomware campaigns against downstream managed environments. Any organization running ConnectWise ScreenConnect is affected, especially managed service providers and IT teams whose management interface is reachable from the internet; the source data specifies affected products but no version ranges. Exploitation is confirmed and urgent: CISA added the flaw to the KEV on 2024-02-22 with known ransomware use, EPSS assigns a 100% probability of exploitation within 30 days, and ConnectWise warned that no patch was available at the time of disclosure.
· ConnectWise ScreenConnect KEV ransomware PoC ×3mass
CVE-2025-39357.23%
ViewState Code Injection in ConnectWise ScreenConnect May Lead to RCE
ConnectWise ScreenConnect versions 25.2.3 and earlier rely on ASP.NET Web Forms ViewState, whose integrity depends on machine keys; if an attacker with privileged system-level access obtains those keys, they can craft and send a malicious ViewState that the server deserializes, potentially resulting in remote code execution. The risk stems from platform-level ASP.NET behavior rather than a defect introduced by ScreenConnect, and the ScreenConnect Client is not directly impacted, though the CVSS vector (PR:H) confirms exploitation requires already having high privileges on the host. An attacker who achieves this gains code execution on the server with the confidentiality, integrity, and availability impact reflected in the 7.2 High score. ScreenConnect 2025.4 mitigates the issue by disabling ViewState entirely and removing any dependency on it. The flaw was added to CISA's Known Exploited Vulnerabilities catalog on 2025-06-02, indicating confirmed exploitation in the wild, with EPSS estimating a 3.4% chance of exploitation in the next 30 days (88th percentile).
· ConnectWise ScreenConnect 25.2.3 and earlier; mitigated in 2025.4 (ViewState disabled) KEVlarge
CVE-2026-35649.0<1%
A condition in the ScreenConnect server component may allow an actor with access to server-level cryptographic material used for authentication to obtain unauth
A condition in the ScreenConnect server component may allow an actor with access to server-level cryptographic material used for authentication to obtain unauthorized access, including elevated privileges, in certain scenarios. ScreenConnect host and guest client agents are not independently affected by this CVE.
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Appears with

vendor ConnectWise 8 vendor Huntress 6 organization ConnectWise 5 vendor ScreenConnect 3 organization Huntress 3 malware rogue ScreenConnect client 2 vendor Microsoft 2 product Quick Assist 2 malware CRPX0 1 malware BlueKit 1 threat actor LinX Coders 1 malware The Outsider 1 malware TRIBACK 1 malware VBScript chain 1 malware OVERLORD RAT 1 malware NJRAT 1

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