EDR
Elastic rejects claims of a zero-day RCE flaw in Defend EDR
Enterprise search and security company Elastic is rejecting reports of a zero-day vulnerability impacting its Defend endpoint detection and response (EDR) product. The company’s statement follows a blog post from a company called AshES Cybersecurity claiming to have discovered a remote code execution (RCE) flaw in Elastic Defend that would allow an attacker to bypass EDR protections. Elastic’s […]
New EDR killer tool used by eight different ransomware groups
A new Endpoint Detection and Response (EDR) killer that is considered to be the evolution of ‘EDRKillShifter,’ developed by RansomHub, has been observed in attacks by eight different ransomware gangs. Such tools help ransomware operators turn off security products on breached systems so they can deploy payloads, escalate privileges, attempt lateral movement, and ultimately encrypt devices on […]
New “Bring Your Own Installer” EDR bypass used in ransomware attack
A new “Bring Your Own Installer” EDR bypass technique is exploited in attacks to bypass SentinelOne’s tamper protection feature, allowing threat actors to disable endpoint detection and response (EDR) agents to install the Babuk ransomware. This technique exploits a gap in the agent upgrade process that allows the threat actors to terminate running EDR agents, leaving […]
Ransomware gang encrypted network from a webcam to bypass EDR
The Akira ransomware gang was spotted using an unsecured webcam to launch encryption attacks on a victim’s network, effectively circumventing Endpoint Detection and Response (EDR), which was blocking the encryptor in Windows. Cybersecurity firm S-RM team discovered the unusual attack method during a recent incident response at one of their clients. Notably, Akira only pivoted to the webcam […]
EDRSilencer red team tool used in attacks to bypass security
A tool for red-team operations called EDRSilencer has been observed in malicious incidents attempting to identify security tools and mute their alerts to management consoles. Researchers at cybersecurity company Trend Micro say that attackers are trying to integrate EDRSilencer in attacks to evade detection. “Our internal telemetry showed threat actors attempting to integrate EDRSilencer in their […]
RansomHub ransomware abuses Kaspersky TDSSKiller to disable EDR software
The RansomHub ransomware gang has been using TDSSKiller, a legitimate tool from Kaspersky, to disable endpoint detection and response (EDR) services on target systems. After taking down the defenses, RansomHub deployed the LaZagne credential-harvesting tool to extract logins from various application databases that could help move laterally on the network. TDSSKiller abused in ransomware attacks Kaspersky […]
Ransomware gang deploys new malware to kill security software
RansomHub ransomware operators are now deploying new malware to disable Endpoint Detection and Response (EDR) security software in Bring Your Own Vulnerable Driver (BYOVD) attacks. Named EDRKillShifter by Sophos security researchers who discovered it during a May 2024 ransomware investigation, the malware deploys a legitimate, vulnerable driver on targeted devices to escalate privileges, disable security […]