Arnold Chan
@slazTrusted contributorCompletionist
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7,555 detections
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This rule detects attempts to tamper with the Anti-Malware Scan Interface (AMSI) or suspicious modifications to the memory of common scripting and proxy processes (powershell.exe, pwsh.exe, rundll32.exe, mshta.exe, wscript.exe, cscript.exe). Such activities are often indicative of an adversary attempting to bypass security detection mechanisms to execute malicious code or hide their presence.
This rule detects attempts to tamper with the Anti-Malware Scan Interface (AMSI) or suspicious modifications to the memory of common scripting and proxy processes (powershell.exe, pwsh.exe, rundll32.exe, mshta.exe, wscript.exe, cscript.exe). Such activities are often indicative of an adversary attempting to bypass security detection mechanisms to execute malicious code or hide their presence.
Detects in-memory tampering of the EtwEventWrite function within ntdll.dll, a technique commonly used by malware and loaders to disable Event Tracing for Windows (ETW) telemetry to avoid detection by security products.
Detects in-memory tampering of the EtwEventWrite function within ntdll.dll, a technique commonly used by malware and loaders to disable Event Tracing for Windows (ETW) telemetry to avoid detection by security products.
Detects inbound emails containing an '.r01' attachment (often associated with multi-part RAR archives) where both SPF and DMARC authentication checks have failed, and the email subject implies business-related themes like purchase orders or supply chain communication. This pattern is indicative of a spearphishing attempt.
Detects inbound emails containing an '.r01' attachment (often associated with multi-part RAR archives) where both SPF and DMARC authentication checks have failed, and the email subject implies business-related themes like purchase orders or supply chain communication. This pattern is indicative of a spearphishing attempt.
Detects inbound emails containing an '.r01' attachment (often associated with multi-part RAR archives) where both SPF and DMARC authentication checks have failed, and the email subject implies business-related themes like purchase orders or supply chain communication. This pattern is indicative of a spearphishing attempt.
Detects in-memory tampering of the EtwEventWrite function within ntdll.dll, a technique commonly used by malware and loaders to disable Event Tracing for Windows (ETW) telemetry to avoid detection by security products.
Detects the execution of 'bun' during a Node.js package installation process (npm or node). This behavior can be indicative of a supply chain attack where malicious actors attempt to leverage alternative runtimes during the 'preinstall' phase or package installation to execute arbitrary code or bypass security controls typically associated with standard Node.js installations.
Detects uncommon or suspicious child processes spawning from a WSL process. This could indicate an attempt to evade parent/child relationship detections or persistence attempts via cron using WSL.
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