Ethan Andrews
@eandrewsTrusted contributorCompletionist
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1,181 detections
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Detects a PowerShell command pattern commonly used by the IClickFix framework. This involves using a hidden window to download a script (often .ps1 or .json) and execute it, bypassing the execution policy. This is a common technique following a "ClickFix" social engineering lure.
Detects the Microsoft SharePoint worker process (w3wp.exe) spawning suspicious child processes often used for post-exploitation activity, such as command shells or scripting engines. This behavior is a strong indicator of a webshell execution, as seen in the ToolShell exploitation campaigns.
Identifies network connections to known command and control (C2) and dropper distribution infrastructure associated with the EncystPHP web shell campaign.
Detects outbound network traffic or DNS queries to the Yandex Cloud Functions domain (functions.yandexcloud.net). This domain was used as a C2 relay by the 'ambar-src' malicious npm package, indicating potential command and control activity.
Detects the creation of the 'UPlugPlay' Windows Service, a known persistence mechanism for the Prometei botnet. The malware may create the service using the command-line tool 'sc.exe' or directly via Windows APIs, which generates Event ID 7045.
Detects instances where a LNK file execution is followed by the launch of a PowerShell process that contains command-line arguments for downloading and/or executing content from the internet. This behavior is the initial execution step in the attack chain detailed in the referenced Fortinet report.
Monitors for command-line activity indicating the addition of SSH keys to authorized_keys files or the modification of the SSH daemon configuration to permit root login on Cisco SD-WAN devices. This is a common persistence technique used by attackers after gaining initial access, such as through CVE-2026-20127.
Detects PowerShell commands used by Prometei to add Microsoft Defender exclusions for its staging and configuration directories ('C:\Windows\Dell' or 'Intel\Support'). This is a common defense evasion tactic.
This rule detects when a process, potentially a Go-compiled binary (indicated by 'go' in the command line), establishes persistence by creating or modifying a registry run key or by dropping a file in a startup folder. This behavior is associated with the Moonrise RAT.
Detects the deletion or clearing of critical Cisco SD-WAN log files. This is a common post-exploitation technique used by attackers to cover their tracks after compromising a device, for instance, after exploiting CVE-2026-20127. The rule identifies direct file deletions and commands used to clear or truncate log file content.
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