Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects a specific persistence technique used by AvisLoader malware. It monitors for the creation of a .lnk.backup file alongside a corresponding .lnk shortcut modification in common shell locations (Desktop, Taskbar, etc.), coupled with the execution of wscript.exe or cscript.exe referencing the 'VLCAssistant' VBScript within a short time window. This sequence indicates an attempt to persist malicious activity by backing up existing shortcuts and replacing them with a launcher for the AvisLoader payload.
This rule detects a specific persistence technique used by AvisLoader malware. It monitors for the creation of a .lnk.backup file alongside a corresponding .lnk shortcut modification in common shell locations (Desktop, Taskbar, etc.), coupled with the execution of wscript.exe or cscript.exe referencing the 'VLCAssistant' VBScript within a short time window. This sequence indicates an attempt to persist malicious activity by backing up existing shortcuts and replacing them with a launcher for the AvisLoader payload.
This rule monitors endpoint telemetry for known indicators of compromise associated with the Casbaneiro/Ousaban banking trojan. It identifies activity across network connections (IPs and domain patterns), DNS queries for specific C2 domains, and the presence or execution of known malicious file hashes (e.g., PDF lures, HTA, AutoIt scripts, and payload binaries).
Detects BeaverTail JavaScript-based loader malware hidden inside NPM packages, distributed via GitHub or Bitbucket during fake technical interviews
Detects the presence or installation of 'truesight.sys' or 'rentdrv2.sys' drivers, which are associated with malicious activity. The rule also triggers when system utilities like sc.exe or services.exe are used to set services related to these names to a 'demand' start type, indicating potential persistence or malicious driver loading.
Detects the creation of a JavaScript file masquerading as a legitimate Microsoft PhotoEngine component ('PhotoStudio.js') within the '%LOCALAPPDATA%' directory. This behavior is associated with the LausivLoader malware, which uses this masquerading technique to evade detection.
Detects the creation, renaming, or modification of a file named 'FitnessMonitor.exe' within the Windows Startup folder. This behavior is indicative of an attempt to establish persistence by ensuring the executable runs automatically upon user login.
Detects the creation or renaming of files within the '\ProgramData\doxc' directory, and correlates this with the execution of 'mklink /H' commands that point to that directory. This behavior is indicative of an adversary establishing persistence or hiding files by creating hard links.
Detects the creation or renaming of files within the '\ProgramData\doxc' directory, and correlates this with the execution of 'mklink /H' commands that point to that directory. This behavior is indicative of an adversary establishing persistence or hiding files by creating hard links.
Detects the creation or modification of a file named 'uploaded_files.json' within a directory containing 'SmartUploader' under the user's AppData path. This pattern is often indicative of data staging or local file tracking activity by potentially malicious software.
Detects the creation or modification of a file named 'uploaded_files.json' within a directory containing 'SmartUploader' under the user's AppData path. This pattern is often indicative of data staging or local file tracking activity by potentially malicious software.
Detects the suspected RUSTYMOVE activity by identifying the creation of specific malicious files (ZIP and LNK) on the root directory of removable drives, followed by reconnaissance commands targeting removable media volumes.
Detects the creation of a suspicious file named 'FitnessMonitor.exe' within the Windows Startup folder. This technique is commonly used by remote access trojans (RATs) to ensure persistent execution upon user logon.
Detects automated searching (via grep, findstr, or select-string) for sensitive strings (e.g., API keys, private keys, wallet data) across multiple occurrences on a single host, or the creation of suspicious sensitive files (e.g., .env, credentials, wallet.dat) on devices where such automated sweeping activity has been observed. This pattern indicates an adversary staging data for exfiltration.
Detects evidence of the RUSTYMOVE USB-propagation tool, associated with APT36 (Transparent Tribe). The rule identifies the creation of specific staged files (DriverInstaller.zip, DocScanner-11-Aug-2026-5-37pm.pdf.LNK) at the root of removable drives, as well as the creation of a 'log.txt' file on removable media that contains markers indicating successful file copying operations.
Detects the creation of specific staging files and directories associated with the Rapuncel infostealer (e.g., UserInformation.txt, installed_applications.txt, sends.log, browser_decryption.log, or the Filegraber directory) within Windows temporary storage paths. This activity typically occurs following the unauthorized collection of sensitive data such as credentials, digital wallet information, and messenger session data.
Detects potential web shell installation via WordPress administrative panels. The rule identifies a WordPress administrator session executing a theme installation request triggered by an external (off-site) referer, followed shortly thereafter by the creation of new PHP files within the WordPress themes directory. This pattern is often indicative of an attacker leveraging a compromised admin session to upload a backdoor.
Detects potential web shell installation via WordPress administrative panels. The rule identifies a WordPress administrator session executing a theme installation request triggered by an external (off-site) referer, followed shortly thereafter by the creation of new PHP files within the WordPress themes directory. This pattern is often indicative of an attacker leveraging a compromised admin session to upload a backdoor.
Detects activity associated with the 'MovieReaper' threat campaign by identifying known malicious file hashes, command and control (C2) IP addresses, and communication with identified malicious domains. This rule monitors process execution, file operations, and network connections within the campaign's active timeframe.
Detects malicious activity associated with the ClickFix/Vidar campaign, where adversaries create persistence using the Windows Run registry key while masquerading as the legitimate 'VoidTools Everything.exe' utility. The rule correlates registry modifications with the creation or execution of a file path mimicking the legitimate software in suspicious locations.
Detects malicious activity associated with the ClickFix/Vidar campaign, where adversaries create persistence using the Windows Run registry key while masquerading as the legitimate 'VoidTools Everything.exe' utility. The rule correlates registry modifications with the creation or execution of a file path mimicking the legitimate software in suspicious locations.
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