Arnold Chan
@slazTrusted contributorCompletionist
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7,555 detections
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Detects instances where 'TieringEngineService.exe' or 'MsMpEng.exe' (Windows Defender) create, modify, or rename executable, library, or system files within the 'C:\Windows\System32\' directory. This behavior is highly irregular as these processes should not be authoring binaries in protected system folders, and may indicate process masquerading, unauthorized persistence, or defense evasion.
Detects suspicious DLL loads or file drops performed by security product processes (avp.exe, MsMpEng.exe) from directories outside of standard, trusted vendor paths. It specifically flags unsigned or invalidly signed DLLs, which is indicative of DLL sideloading techniques used to abuse security software workflows for potential privilege escalation.
This rule detects the execution of a file named 'report.bin' and correlates it with subsequent network connections originating from the same process. This behavior is indicative of a potential C2 heartbeat or exfiltration activity involving a non-standard or obfuscated executable.
Detects the execution or presence of files, processes, or paths associated with the 'SnowKiller' malware or tool, as identified by keyword matching in process event logs.
Detects the creation of a WordPress administrator account within one hour of a recorded web request to a known web shell path (Mushr00w) or suspect plugin upload directory. This correlation is a high-fidelity indicator of post-exploitation persistence and administrative account hijacking.
Detects Evil-WinRM / WinRM-fs usage or wsmprovhost.exe-spawned PowerShell tied specifically to bird-agent backdoor artifacts (cplsupport, wtass, config.toml) or encoded/download-cradle command patterns, rather than any WinRM session, reducing noise from routine remote administration.
Detects modifications to the 'metrics_interval' registry value within the 'Software\SynapseAgent' key. This activity suggests configuration changes to the SynapseAgent, which could indicate tampering with agent telemetry or polling frequency.
Detects execution of PowerShell.exe initiated by cplsupport.exe with hidden window styles and non-interactive, no-profile flags, which is often indicative of obfuscated command execution or malicious script activity.
Detects the modification or creation of the 'SealedConfig' value within the 'Software\synapse\Config' registry key, correlated with the deletion of a 'config.toml' file on the same device. This pattern may indicate an adversary tampering with Synapse software configuration or attempting to remove audit/configuration trails.
Detects direct SQL UPDATE operations on the pg_authid system table to modify privilege flags (e.g., rolsuper, rolcreaterole) without using the authorized ALTER ROLE statement. Such activity often indicates an attempt to escalate privileges or modify database user permissions in an unauthorized manner, bypassing standard auditing and role management processes.
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