Tim Peck
@timpeckTrusted contributorCompletionist
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919 detections
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Detects the execution of a shell command characteristic of APT36's use of malicious .desktop files on Linux. The command typically involves using 'curl' to download a hex-encoded payload and 'chmod' to make it executable, often within the a tmp directory.
Detects the DLL side-loading of 'jli.dll' by 'keytool.exe' from common malware staging directories. This is a more generic version of a rule detecting a technique used by ValleyRAT in Operation Silk Lure.
Detects the installation of malicious npm packages, such as 'node-nvm-ssh', used by the Famous Chollima group. The detection focuses on suspicious post-install scripts executed by node.exe, which is a known TTP for this actor to deliver malware like BeaverTail and OtterCookie.
Detects potential DLL side-loading used by the AdaptixC2 framework, where a malicious DLL is dropped into the C:\Windows\Tasks directory, followed by the execution of a copied msdtc.exe from the same location.
Detects potential exploitation of Cisco SNMP vulnerability (CVE-2025-20352) by identifying shell command patterns within SNMP traffic, indicative of remote code execution attempts as seen in Operation Zero Disco.
Detects the execution of the 'xattr -c' command on a macOS endpoint. This command is used to clear all extended attributes from a file, including the 'com.apple.quarantine' attribute set by Gatekeeper on downloaded files. UNC5142 uses this technique to bypass macOS security prompts before executing downloaded malware like the ATOMIC infostealer.
Detects PowerShell scripts leveraging System.Drawing and System.Windows.Forms to manipulate Metafile objects. This technique can be used to trigger a denial-of-service vulnerability (related to CVE-2025-53766) in the Windows GDI component by processing a specially crafted metafile.
Detects when a Visual Studio Code configuration file is modified, followed by the execution of a shell or networking tool by VS Code. This pattern may indicate abuse of GitHub Copilot via prompt injection (CVE-2025-53773) to achieve remote code execution.
Detects processes loading a Lua library (DLL), which could indicate the execution of an embedded Lua script for post-exploitation. This technique was demonstrated in the LOLMIL (Living Off the Land Models and Inference Libraries) research where an autonomous malware used an embedded Lua interpreter to run dynamically generated code.
Detects process execution with at least two command-line arguments commonly used by Qilin ransomware.
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