Danny Y
@zendannyyTrusted contributorCompletionist
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375 detections
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Detects attempts to exploit a remote code execution vulnerability (CVE-2025-40553) in SolarWinds Web Help Desk. Attackers use hex-encoded escape sequences (`\xNN`) and other JSON parsing gotchas to bypass security filters and achieve deserialization of malicious objects.
Detects 'osascript' (AppleScript) executing 'curl' to download a second-stage payload. This updated rule is tuned to detect specific indicators from a known campaign, such as the use of silent/insecure flags, downloads to hidden script files (e.g., .ex.scpt), or connections to known malicious domains.
Detects successful Entra ID sign-ins that exhibit characteristics of an Adversary-in-the-Middle (AiTM) session cookie hijack.
This activity is often associated with AiTM phishing kits like Tycoon2FA, where attackers replay stolen session cookies from unmanaged devices to bypass MFA.
This activity is often associated with AiTM phishing kits like Tycoon2FA, where attackers replay stolen session cookies from unmanaged devices to bypass MFA.
Detects the renaming of the macOS TCC (Transparency, Consent, and Control) directory. This is a specific evasion technique where malware renames the directory to 'com.appled.tcc' to release file locks on the TCC.db, allowing for the injection of permissions.
Detects attempts to downgrade or use outdated cryptographic algorithms that may be vulnerable to several attacks. Such as RC4, DES, 3DES, MD5, or outdated TLS/SSL versions (TLS 1.0, TLS 1.1, SSL 3.0)
Detects when a repository's branch protection, specifically the 'allow force pushes' enforcement level, is updated or disabled. This rule explicitly excludes events originating from automation scripts to reduce false positives.
This rule detects VNC-based lateral movement activities within an internal network (East-West traffic).
Detects persistence establishment after docker container escape
Detects persistence establishment after docker container escape
Detects an adversary stopping or disabling the Linux audit daemon (auditd), the primary kernel-level activity logging subsystem on Linux.
Disabling auditd eliminates syscall-level telemetry including file access, process execution, and privilege escalation events.
Effectively attempting to blind the host's logging pipeline before further action.
Observed in: TeamTNT, Rocke cryptominer campaigns, post-exploitation frameworks (Metasploit, Sliver) during cleanup phases.
Disabling auditd eliminates syscall-level telemetry including file access, process execution, and privilege escalation events.
Effectively attempting to blind the host's logging pipeline before further action.
Observed in: TeamTNT, Rocke cryptominer campaigns, post-exploitation frameworks (Metasploit, Sliver) during cleanup phases.
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