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Arnold Chan

@slaz
Trusted contributorCompletionist
2 followers2,100 downloads4,384 copies51 likes26,172 views

7,555 detections

This rule detects the creation of a scheduled task using 'schtasks.exe' where the task name matches commonly abused names such as 'WinUpdate.exe', 'SoftManager.exe', or 'LockAppHost.exe'. These names are frequently used by adversaries to masquerade as legitimate Windows processes to achieve persistence.
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Arnold Chan@slaz
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Hunters
2 months ago
002
Detects suspicious executions of 'nslookup.exe' and 'svchost.exe' when triggered by the Windows LockAppHost process. This pattern is indicative of potential process injection or masquerading attempts by malicious actors using legitimate system processes as proxies for unauthorized activity.
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Arnold Chan@slaz
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Hunters
2 months ago
002
This rule detects potential cryptocurrency mining activity where known miner executables (specifically XMRig) or malicious scripts/processes are masquerading as or being spawned by 'LockAppHost.exe' or 'LockAppHost14a02b.exe'. It also monitors for subsequent attempts by these processes to terminate security-related tasks or establish persistence via registry run keys.
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Arnold Chan@slaz
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Hunters
2 months ago
002
Detects unauthorized processes (e.g., cmd.exe, powershell.exe, node.exe) accessing sensitive web browser files like 'Login Data' or 'Cookies' in common browser directories. This behavior is indicative of credential theft or data exfiltration attempts.
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Arnold Chan@slaz
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Hunters
2 months ago
002
Detects when a Node.js process initiates a low-level keyboard hook (WH_KEYBOARD_LL or WH_KEYBOARD) while running from common user-writable directories, which may indicate malicious keylogging activity by a suspicious process.
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Arnold Chan@slaz
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Hunters
2 months ago
002
Detects potential session replay or cookie theft attacks against Google Workspace accounts. The rule identifies anomalous session activity where a single session ID is associated with multiple country codes within a short timeframe (less than 60 minutes), suggesting that a stolen session token is being used by an adversary in a different location than the legitimate user.
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Arnold Chan@slaz
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Hunters
2 months ago
102
Detects execution of Electron or Node.js processes attempting to export Telegram sessions, specifically targeting execution paths often used for staging or temporary storage (Temp, Roaming, ProgramData, Public folders).
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Arnold Chan@slaz
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Hunters
2 months ago
302
This rule detects the presence of 'winpty-agent.exe' or 'winpty.dll' in proximity to 'node.zip' or 'build.zip' files within common user-writable or temporary directories ('AppData\Local\Temp', 'AppData\Roaming', 'ProgramData', 'Users\Public'). This pattern is often associated with the staging and execution of malicious tools or command-line wrappers in non-standard locations, bypassing legitimate application installation directories.
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Arnold Chan@slaz
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Hunters
2 months ago
002
Detects the execution of node.exe or electron.exe with command-line arguments indicative of browser automation (e.g., launching headless browsers, cookie access) when executed from high-risk, writable directories like AppData\Temp, AppData\Roaming, ProgramData, or Users\Public. This behavior is frequently associated with information-stealing malware or unauthorized browser automation.
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Arnold Chan@slaz
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Hunters
2 months ago
002
Detects Node.js or related helper processes executing shell commands (cmd.exe, powershell.exe) or other processes where the execution involves the 'withCreateProcessUser' argument. This often indicates attempts to bypass execution restrictions or run malicious payloads by utilizing Node.js as an execution proxy within unconventional or temporary directories.
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Arnold Chan@slaz
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Hunters
2 months ago
002
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