Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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Detects potential privilege escalation and unauthorized file modification by the 'egnyteservice' account. The rule monitors Syslog for sudo usage involving the 'tee' utility with 'NOPASSWD' configuration, or suspicious writes to critical system directories such as /usr/sbin/ and /etc/cron.d/, which are indicative of VerdantBamboo threat actor activity on edge appliances.
Detects the execution of known malicious or hijacked npm and Go packages associated with the Lazarus Group 'Contagious Interview' supply chain campaign. The rule monitors for node.exe or go.exe spawning unexpected child processes like shells or download utilities (e.g., curl, powershell) and the presence of specific malicious package names in command lines.
Detects Python processes spawned by development tools (VSCode, Cursor) or Node.js that are engaged in suspicious activities, specifically communicating with the Telegram Bot API or uploading large amounts of data, often accompanied by file staging (ZIP archive creation). This behavior is characteristic of the InvisibleFerret information stealer.
Detects the creation of an NTFS Alternate Data Stream (ADS) named :WDFOO on the wermgr.exe process within RP_* staged directories. This behavior is a specific indicator of the RoguePlanet exploit (CVE-2026-50656), which leverages an ADS write to trigger a Microsoft Defender on-access scan and facilitate a TOCTOU (Time-of-Check to Time-of-Use) race condition for privilege escalation or exploitation.
Detects unauthorized processes attempting to access 'wermgr.exe' via a Volume Shadow Copy Service (VSS) device path. This behavior is associated with the RoguePlanet exploit chain (CVE-2026-50656), which leverages VSS to bypass file system protections for TOCTOU (Time-of-Check to Time-of-Use) exploitation. Legitimate system and backup processes are excluded.
Detects a user-mode process attempting to set an opportunistic lock (oplock) on wermgr.exe within a Volume Shadow Copy (VSS) snapshot. This behavior is associated with the RoguePlanet exploit chain (CVE-2026-50656), which leverages VSS snapshots and file locking to trigger a TOCTOU race condition against the Microsoft Defender (MsMpEng.exe) scanner.
Detects anomalous loading of amsi.dll by processes running from suspicious staging paths commonly associated with the Yuta/Glove Stealer campaign. The rule identifies processes that may be performing in-memory patching of 'AmsiOpenSession' or 'EtwEventWrite' to blind security telemetry, a hallmark of credential theft malware.
This rule identifies potential BRICKSTORM command and control (C2) activity by detecting sustained beaconing patterns to known public DNS-over-HTTPS (DoH) providers (8.8.8.8, 1.1.1.1) over port 443. It buckets network connections into 10-minute windows and flags source devices exhibiting frequent, repetitive traffic patterns, enriched with asset context to prioritize alerts from edge appliances such as firewalls, NAS devices, or storage sync services.
Detects the Yuta/Glove stealer malware (winupdate.exe) communicating with Discord webhooks or API endpoints. This behavior is indicative of data exfiltration or receipt of interactive RAT commands, such as shell, webcam, keylogger, and system tracing.
Detects malicious activity associated with the Yuta/Glove Stealer malware family. The rule identifies attempts to register persistent WMI event subscriptions (using wmic, powershell, or pwsh) to trigger execution or the registration of low-level keyboard hooks (WH_KEYBOARD_LL) for keylogging, originating from suspicious process paths like winupdate.exe or PyInstaller-compiled temporary directories.
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