MeridianMeridian

Ransomware Groups Disable EDR, Backups and Windows Telemetry Before Encryption

Ransomware operators are increasingly focusing on disabling endpoint detection and response tools, backup systems, and Windows telemetry mechanisms prior to launching encryption. An analysis of the ten ransomware families with the lowest prevention rates in 2026 found that Play achieved only 13 percent of attacks blocked. BlackByte followed with 25 percent blocked and LockBit with 30 percent blocked. BabLock leverages a legitimate uninstaller to remove endpoint protection and terminates processes belonging to antivirus, EDR, backup, and database applications. It then clears the Security and System event logs to hinder incident response. LockBit 5.0 instead interferes with Event Tracing for Windows to reduce visibility for monitoring solutions. Additional families employ process injection, in-memory execution, registry modifications, file masquerading, and living-off-the-land binaries to evade detection.

BoletimSecTranslated from Portuguese

Read at source

Ransomware groups are prioritizing the disablement of security tools, backup systems, and Windows telemetry mechanisms before beginning encryption. The goal is to reduce organizations' ability to detect, contain, and recover from attacks.

An analysis of the ten families with the lowest prevention rates in 2026 showed that Play performed worst, blocking only 13 percent of attacks. BlackByte followed with 25 percent blocked, while LockBit achieved 30 percent blocked.

Among the most common techniques is the interruption or modification of defensive tools. BabLock, for example, uses a legitimate uninstaller to remove endpoint protection and terminates processes related to antivirus, EDR, backup, and database applications. After these steps, the ransomware deletes the Security and System event logs, eliminating critical records for incident response teams and complicating reconstruction of attacker activity.

LockBit 5.0 takes a different approach by interfering with Event Tracing for Windows, the mechanism used by many security solutions to collect events. This change prevents certain information from being recorded and reduces visibility for monitoring tools.

Other families rely on process injection, direct in-memory code execution, registry alterations, file disguise, and abuse of legitimate Windows utilities to conceal their operations.

PlayBlackByteLockBitBabLock
ShareXFacebookLinkedInReddit
Meridian digestThe week's most consequential security stories, distilled into one briefing.See the digest

More in Ransomware & Extortion

Ransomware Group Emperador Claims 3.9 GB Data Theft from AB InBev
Ransomware & Extortion

Ransomware Group Emperador Claims 3.9 GB Data Theft from AB InBev

The ransomware group Emperador has added AB InBev, the manufacturer of Budweiser and Corona beers, to its list of alleged victims. The group claims to possess 3.9 GB of internal data and is demanding a $1 million Bitcoin ransom. The listing includes 329,244 social listening alerts, 2,510 corporate emails from subsidiaries, around 19,000 access records, internal service portal logs, and public key infrastructure certificates. Most of the data volume, 3.2 GB, is attributed to Azure storage assets. AB InBev has neither confirmed nor denied the claims, and no samples have been published to verify authenticity. The announcement provides no details on how the data was allegedly obtained, such as an exposed storage account or leaked credentials. While access records and certificates could aid network mapping and lateral movement, the lack of private keys or confirmed encryption of systems limits the immediate impact assessment.

BoletimSecOct 27, 2026Translated from Portuguese

Russian Ransomware Groups INC and The Gentlemen Deploy AI-Driven Phantom Framework for Fully Automated Attacks
Ransomware & Extortion

Russian Ransomware Groups INC and The Gentlemen Deploy AI-Driven Phantom Framework for Fully Automated Attacks

SOCRadar researchers have disclosed the Phantom framework, an AI-powered autonomous ransomware attack platform operated by members linked to the INC and The Gentlemen groups. The system uses commercial large language models routed through OpenRouter to scan 7,158 edge devices, steal 535 administrator accounts, and compromise 4,140 endpoints. AI agents autonomously generate custom encryption binaries, craft personalized ransom demands based on stolen financial data, and write kernel drivers to disable EDR solutions before encryption. The framework runs on 32 custom MCP servers that give the AI direct access to scanning, credential abuse, financial analysis, and anti-detection tooling. Human operators only supply target prompts and approve final actions while the AI executes the entire kill chain. Phantom Agent v3.1 implants masquerade as Windows Update components and communicate over encrypted channels with randomized polling intervals. The discovery reveals a mature Ransomware-as-a-Service model that lowers the barrier for other criminal groups to conduct large-scale AI-automated extortion.

安全客Oct 26, 2026Translated from Chinese

Creator of Ransomware Forum Ramp4u Hands Over 1.5 Billion Rubles to Russian Law Enforcement
Ransomware & Extortion

Creator of Ransomware Forum Ramp4u Hands Over 1.5 Billion Rubles to Russian Law Enforcement

A darknet researcher known as exkgb has published an analysis of the ransomware forum Ramp4u.io, revealing that its founder cooperated with authorities by transferring 1.5 billion rubles. The report follows the author's earlier coverage of the Exploit forum administration, which drew significant reader interest with only a 6% bounce rate. Ramp4u is described as a dedicated ransomware marketplace operating on the dark web. The article positions the forum as a key platform in the ransomware ecosystem and notes the unusual cooperation with security forces. exkgb continues to monitor and document major darknet platforms for the cybersecurity community.

HabrOct 26, 2026Translated from Russian