Threats Tagged 'av/edr evasion'
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Threats Tagged 'av/edr evasion'
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Akira affiliates have been observed exploiting two common drivers as part of a suspected AV/EDR evasion effort following initial access involving SonicWall abuse. The drivers, rwdrv.sys and hlpdrv.sys, are being used to facilitate AV/EDR evasion or disablement through a Bring Your Own Vulnerable Driver (BYOVD) exploitation chain. This behavior has been prevalent in recent Akira ransomware incident response cases. The campaign may be driven by an unreported zero-day vulnerability in SonicWall VPNs. Defenders are advised to harden SonicWall VPNs, implement recommended mitigations, and use provided YARA rules for detection and response to pre-ransomware activity. Join the discussion | AlienVault OTX General | 08/08/2025, 08:07:28 UTC Added: 08/08/2025, 08:17:47 UTC |
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