Duo Tech
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2,481 detections
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Detects the creation, modification, or renaming of ZIP archive files prefixed with 'zx_' within the macOS crash reporter cache directory. This behavior may indicate an adversary staging crash report data for potential exfiltration.
Detects the 'ff-agent' process exhibiting unusual network behavior, specifically involving multiple network protocols or connections to a high number of distinct remote ports within a one-hour window. This behavior is indicative of potential command and control (C2) communication, network reconnaissance, or proxy activity.
Detects established TLS traffic over WebSockets where the certificate subject field lacks a common name (CN), often indicative of non-standard, self-signed, or improperly generated TLS certificates used by command-and-control (C2) agents to bypass standard certificate validation or hide within encrypted channels.
Detects access, creation, or modification of sensitive browser files (Cookies, Login Data, Local State) associated with Google Chrome or Microsoft Edge. The rule specifically flags when these files are interacted with within standard user directories or when they are copied to known browser backup folders, a common behavior during credential theft or data staging.
This rule detects the use of database-related processes (mysql) or scripts (python) interacting with MySQL User-Defined Function (UDF) mechanisms. Attackers often abuse UDFs to execute arbitrary commands, load external libraries, or facilitate lateral movement/privilege escalation within a database environment.
Detects the execution of PowerShell with a combination of flags commonly used to bypass security policies, obscure command execution, and run hidden tasks: -NoProfile, -ExecutionPolicy Bypass, and -EncodedCommand.
Detects when multiple security agent processes are terminated on a single host. Monitoring for the simultaneous or rapid termination of security products like Windows Defender, Cylance, SentinelOne, or Falcon suggests an attempt to disable endpoint protections before further malicious activity.
This rule monitors for suspicious activity aimed at disabling or tampering with security software, including antivirus processes and services. It identifies execution of tools named 'AVKiller.exe', the usage of commands like 'taskkill', 'net stop', or 'sc stop' against known security-related processes, and the modification of Windows Defender scheduled tasks to disable security scans.
Detects the execution of PowerShell with a combination of flags commonly used by attackers to hide activity, bypass execution policies, and execute encoded or scripted commands. This pattern often indicates attempts to run malicious scripts stealthily on a Windows host.
Detects the creation of a Windows service associated with the AnyDesk remote access application using the sc.exe utility. This behavior often indicates the unauthorized installation or persistence setup of a remote access tool.
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