Brandon Rodriguez
@BMRodriguezTrusted contributor
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123 detections
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Detects wscript.exe launching mshta.exe to execute files in the temporary directory. This behavior is indicative of Gamaredon's GammaDrop launching the GammaLoad HTA payload.
Detects RunOnce registry modifications calling wscript.exe to execute an .icl script silently. This is indicative of GammaLoad malware establishing persistence.
Detects the execution of rundll32.exe calling a specific exported function ('open') associated with the fake lock screen DLL ('com6848.dll') to capture user passwords. This technique is often used in credential harvesting campaigns.
Detects the initial PowerShell command users are instructed to paste and run from the Windows Run dialog following a Microsoft Teams social engineering lure to deploy ModeloRAT. This rule specifically looks for PowerShell execution that downloads content from 'dropbox.com' using 'iwr' (Invoke-WebRequest), extracts an archive using 'Expand-Archive', and targets the 'appdata' directory.
Detects the creation of a SYSTEM-level scheduled task using 'schtasks.exe' that launches 'pythonw.exe' with 'Pmanager.py'. This activity is indicative of the KongTuke threat actor establishing persistence for ModeloRAT, ensuring long-term access to the compromised system.
Monitors Cisco Catalyst SD-WAN Controller logs for successful administrative logins. This may indicate exploitation of an authentication bypass vulnerability granting unauthorized admin access.
Detects the loading of kernel modules using insmod. Executing this from within a container or unexpected context often indicates abuse of CAP_SYS_MODULE to load malicious rootkits or reverse shells for privilege escalation or container escape.
Detects Cisco SD-WAN control connection state changes indicating a new 'vmanage' peer connection from an unauthorized IP address. This rule is designed to identify potential exploitation of vulnerabilities like CVE-2026-20182, where attackers establish unauthorized infrastructure ties by creating new vManage peer connections. The rule filters for syslog messages from the Viptela-vSmart-VDAEMON indicating a 'control-connection-state-change' with 'new-state:up' and 'peer-type:vmanage', and then excludes connections from a list of authorized vManage IP ranges.
Detects the creation or modification of GitHub Actions workflow files designed to dump and exfiltrate repository secrets, a technique observed in the Mini Shai-Hulud supply chain attack. This rule specifically looks for file events in GitHub Actions workflow directories combined with command-line patterns indicative of secret exfiltration or the creation of a specific malicious workflow file ('codeql_analysis.yml') by scripting interpreters.
Detects the execution of the Bun runtime attempting to execute known malicious scripts associated with the Mini Shai-Hulud supply chain compromise. Attackers use Bun during npm installation to evade traditional Node.js security monitoring.
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