ZeroHour

Search: “Bulgaria”

4 stories

Sality, one of the longest

US and European authorities, with CrowdStrike and Shadowserver, disrupted the 20-year-old Sality peer-to-peer botnet, severing 15,000+ infected machines from operators.

US and European authorities disrupted the Sality botnet, active since at least 2003, in an operation involving the DOJ, CrowdStrike, the Shadowserver Foundation and agencies in Bulgaria, Hungary and Romania. Researchers reverse-engineered the botnet's peer-to-peer architecture and injected false data into infected machines' 'super peer' lists, cutting more than 15,000 systems off from their operators. For the past eight years Sality primarily distributed EggJagger, malware that replaces clipboard cryptocurrency addresses and is estimated to have netted the operator at least $150,000. No arrests were announced, and CrowdStrike assesses the operator works from Russia's Bashkortostan region.

The Record · 14d agoMalware in the wild

Week in review: Records allegedly stolen from Azure tenants, Medusa ransomware hits 500+ orgs

Week in review: Medusa ransomware hit 500+ orgs per CISA, millions of Azure tenant records allegedly stolen, SafePal and French tax authority breaches disclosed.

Help Net Security's weekly roundup covers the FBI, CISA, and HHS joint advisory update reporting Medusa ransomware has breached more than 500 organizations since June 2021, and threat actor TheHatman's claim of millions of employee records stolen from Azure tenants of Fortune 500 firms including McDonald's, Vodafone, Kyndryl, and Tata Consultancy Services, per Hudson Rock. It also covers the SafePal breach affecting 39,798 customers, France's DGFiP breach exposing data on 678,000 individuals, and UT San delaying its fall semester after a cyberattack. Security items include critical unauthenticated GitLab flaw CVE-2026-19478, an actively exploited patched macOS Screen Sharing flaw deploying a cryptominer, US charges against 17 Mabna Institute Iranian hackers over 31TB of stolen academic data, and Google Mandiant's AI agents finding 100+ high-severity vulnerabilities.

Help Net Security · 25d agoData breach in the wildCVE-2026-19478

Ransom Busters Claims It Hacked Ransomware Servers, Asks Victims for Up to $60,000

GuidePoint reports a ransomware affiliate posing as 'Ransom Busters' charges victims $20,000-$60,000 to delete stolen data, and details UNC6671's $8M AitM extortion wave.

GuidePoint's GRIT team reports that 'Ransom Busters', likely a ransomware affiliate active across multiple RaaS operations including DragonForce, Settra and Anubis, proactively emails victims claiming it deleted their stolen data and backups for a $20,000-$60,000 fee, citing claimed access to RaaS administrative panels for over three years. Two analyzed intrusions shared tooling: SoftPerfect Network Scanner for reconnaissance, s5cmd-based exfiltration to AWS cloud storage, an RMM tool installed via PowerShell, a backdoor account with password 'Numlock!123' and the same attacker hostname DESKTOP-BBETH6K. Separately, GRIT detailed UNC6671's (Cordial Spider) adversary-in-the-middle vishing operation running since April under five extortion brands, with more than $8 million across 15 Bitcoin wallets, an average of $600,000 per payment, and 78 phishing sub-domains across 76 organizations, 40% in financial services.

The Hacker News · 29d agoThreat actor in the wild1

Investigation of banking hack leads to arrests in Europe, Brazil

German and Brazilian police arrested seven suspects over a 2023 hack that drained an estimated 30 million euros from German bank accounts.

Germany's BKA said three suspects were arrested in Europe and charged with fraud, while Brazil's federal police arrested four others and executed 21 search warrants under Operacao Klonen (Operation Clone). The November 2023 attack exploited a vulnerability at a payment provider and used cloned payment cards to make unauthorized withdrawals from German online banking users, draining an estimated 30 million euros (34.7 million dollars). Funds were laundered through Brazil and four European countries, and courts ordered seizure of assets worth more than 20 million dollars. Brazilian media identified the affected bank as Commerzbank, which said customers suffered no financial loss.

The Record · Aug 15, 2026Policy & legal in the wild