Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects instances where processes not associated with standard web browsers (e.g., node.exe) attempt to create, modify, or rename browser-related sensitive files, specifically cookie databases and DPAPI-protected Local State files. Such activity is often indicative of credential and session cookie theft.
Detects the use of PowerShell commands 'Add-MpPreference' or 'Set-MpPreference' to add the entire C drive as an exclusion path for Windows Defender. This is a common technique used by attackers to disable security monitoring for the entire file system.
Detects the presence or activity of a known malicious Chromium-based browser extension (Perplexity AI imposter, ID: flkebkiofojicogddingbdmcmkpbplcd) through monitoring file system changes in browser directories, registry modifications, or network communication with identified command-and-control infrastructure.
Detects the installation of a malicious Chromium extension masquerading as 'Search for perplexity ai'. The rule monitors for file creation events in the Chrome extensions directory matching the specific malicious extension ID, modification of the Chrome Preferences file, and outbound network connections from the browser to the identified C2 domain.
Detects the creation or modification of specific suspicious files (e.g., MediumInstStart.exe, SolidPDFCreator.dll, pcl2bmp.exe, ctxmui.dll) in common temporary or world-writable directories like ProgramData or Users/Public/Documents, which are often used by adversaries for staging tools or malware components.
Detects the use of the Windows 'attrib.exe' utility to set the hidden (+h) attribute on files or directories within 'ProgramData' or 'AppData' paths. This behavior is frequently associated with the Mustang Panda threat group to conceal malicious artifacts, such as the SHARDLOADER and ZOHOMURK implants, from standard user visibility.
Detects access or modification of cloud provider credential and configuration files by common script interpreters or code editors (python, node, vscode), which may indicate credential theft or misuse by an adversary.
Detects the creation or modification of suspicious Launch Agent or Launch Daemon .plist files, or a hidden application support directory, masquerading as 'com.apple.accountsd' on macOS. This behavior is often indicative of persistence mechanisms used by adversaries.
Detects modification of shell profile files for command execution on login
Detects use of Linux extended attributes to hide malicious data
This rule detects the creation or modification of specific script files in common Linux persistence locations: '/etc/profile.d/' or '/usr/local/lib/'. Adversaries may modify or create scripts like '.sh.local' or '.cache-update.sh' in these directories to establish persistence, as these scripts can be executed automatically during system boot or user login.
Detects indicators of the Meow RAT malware staging collected data in the /tmp/shub_ directory, compressing it into shub_log.zip using 'ditto', and subsequently exfiltrating it to a hardcoded command and control (C2) domain 'qwqerrqwr2145qw[.]com/gate'. The rule correlates process events, network events, and file events to identify the full attack chain.
Detects the creation or execution of suspicious LNK files masquerading as legitimate AnyDesk or N-able RMM configuration files (e.g., ApplianceConfig.lnk, ServerConfig.lnk) and unauthorized access to AnyDesk service or user configuration files (anydesk_svc.conf, anydesk_usr.conf). This behavior is associated with MexicanMafia's 'Operation Escaneo' for establishing persistent, low-visibility remote access.
This rule detects the execution of scripts and commands associated with known SAP RFC exploitation attempts, including specific shell scripts used for RCE or credential extraction, as well as the invocation of SAP function modules like SXPG_CALL_SYSTEM for OS command execution. These patterns are consistent with post-exploitation activity or unauthorized system administration in SAP environments.
This rule detects activities associated with CORS-based exploitation and session token harvesting, specifically targeting the creation or access of known exploit files (e.g., cors_exploit_poc.html) and the use of command-line tools (curl, wget, PowerShell) to interact with suspicious artifacts or session tokens (AMAUTHID/SAT).
This rule detects the execution of specific shell processes (sh, bash, crontab) where command-line arguments reference suspicious paths commonly associated with persistence mechanisms or malware, such as /var/tmp/ files or crontab spool directories.
This rule detects post-execution activity associated with the lambsys/isp.sh cryptominer campaign. It triggers when a known miner binary (lambsys, procq, or isp.sh) is executed, followed within 3 minutes by suspicious cleanup operations including the deletion of log files (wtmp, btmp, system logs), staging directories, or tampering with command history files and shell environment variables.
This rule detects suspicious manipulation of Linux namespaces using the 'unshare' utility or manual modification of user ID mapping files ('uid_map', 'gid_map', 'setgroups') in '/proc/self/'. Such activities are characteristic of container escape attempts or privilege escalation, where an attacker seeks to gain root access on the host or map unprivileged users to privileged IDs within a new namespace.
Detects command-line execution of 'rm' or 'cp -a' targeting specific sensitive system, credential, or configuration files on Linux systems. This behavior often indicates an attempt to remove evidence, destroy logs, or stage sensitive data for exfiltration.
Detects execution of sensitive administrative binaries (rm, chmod, chown) targeting critical system files or directories, or direct interaction with sensitive system files and configuration logs which may indicate unauthorized data access or evidence tampering.
Detects the 'Adblock for YouTube' browser extension (specific ID cmedhionkhpnakcndndgjdbohmhepckk) performing suspicious file system operations related to the injection of remotely-fetched scriptlets into the browser's MAIN world. This activity is indicative of an attempt to bypass browser security boundaries to access session cookies, local/session storage, and login form data.
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