Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects the execution of SharpMove, a .NET utility performing multiple tasks such as "Task Creation", "SCM" query, VBScript execution using WMI via its PE metadata and command line options.
Detects the execution of PingCastle, a tool designed to quickly assess the Active Directory security level.
Detects the execution of PingCastle, a tool designed to quickly assess the Active Directory security level via a script located in a potentially suspicious or uncommon location.
Detects suspicious use of PCHunter, a tool like Process Hacker to view and manipulate processes, kernel options and other low level stuff
Detects the use of NPS, a port forwarding and intranet penetration proxy server
Detects the use of parent process ID spoofing tools like Didier Stevens tool SelectMyParent
Detects the use of IOX - a tool for port forwarding and intranet proxy purposes
Detects potential exploitation attempts of the Netlogon Elevation of Privilege Vulnerability (CVE-2020-1472), also known as Zerologon. This rule specifically looks for Event ID 4742 (A computer account was changed) where the SubjectUserName is 'ANONYMOUS LOGON' and the TargetUserName matches a Domain Controller's machine account name (ending with '$'), while filtering out legitimate password changes by checking if 'PasswordLastSet' is not '-'.
Detects the execution of the "cloudflared" tool with command-line arguments indicative of establishing or running a tunnel. This activity has been observed in post-compromise scenarios by threat actors, such as the Akira ransomware group, to maintain persistence and remote access to compromised networks by creating covert communication channels.
Detects attempts to access the Local Security Authority Subsystem Service (LSASS) process with suspicious access masks. Adversaries often target LSASS to dump credentials for lateral movement or privilege escalation. The rule looks for specific access mask values in Windows Security Event IDs 4656 (handle requested) and 4663 (object access attempt) that are indicative of credential dumping activities, while filtering out known legitimate processes.
Detects the execution of commands via the Windows Run dialog box by monitoring modifications to the "RunMRU" registry key. This technique has been observed in campaigns where threat actors trick users into pasting and executing malicious commands, often under the guise of CAPTCHA verification steps, to deliver malware like Lumma Stealer.
Detects changes to the PowerShell execution policy in the Windows Registry to bypass signing requirements for script execution. This rule specifically looks for modifications to the 'ExecutionPolicy' registry values under PowerShell-related paths, setting them to 'Bypass' or 'Unrestricted'. It also filters out changes made by 'svchost' to reduce false positives.
Detects the execution of the "cloudflared" binary from a non standard location.
Detects creation of an ad-hoc Cloudflare Quick Tunnel, which can be used to tunnel local services such as HTTP, RDP, SSH and SMB.
The free TryCloudflare Quick Tunnel will generate a random subdomain on trycloudflare[.]com, following a call to api[.]trycloudflare[.]com.
The tool has been observed in use by threat groups including Akira ransomware.
The free TryCloudflare Quick Tunnel will generate a random subdomain on trycloudflare[.]com, following a call to api[.]trycloudflare[.]com.
The tool has been observed in use by threat groups including Akira ransomware.
Detects RAR usage that creates an archive from a suspicious folder, either a system folder or one of the folders often used by attackers for staging purposes
Detects execution of "tar.exe" in order to create a compressed file.
Adversaries may abuse various utilities to compress or encrypt data before exfiltration.
Adversaries may abuse various utilities to compress or encrypt data before exfiltration.
Detects a commandline containing references to the Microsoft Teams database or cookies files from a process other than Teams.
The database might contain authentication tokens and other sensitive information about the logged in accounts.
The database might contain authentication tokens and other sensitive information about the logged in accounts.
Detects when one of the critical Windows Event Logs (PowerShell, Sysmon, Security, System) is cleared. This activity is often performed by adversaries to remove traces of their actions and evade detection. The rule specifically looks for Event ID 104 from the 'Microsoft-Windows-Eventlog' provider across these important channels.
Detects the use of 'IMEWDBLD.exe', a legitimate Microsoft binary, to download arbitrary files from HTTP or HTTPS sources. This technique is often abused by adversaries for ingress tool transfer or to fetch additional malicious payloads, leveraging a trusted binary to bypass defenses.
This rule detects the execution of `find.exe` or `findstr.exe` on Windows systems when used to search for keywords commonly associated with security tools. Attackers often use these utilities to discover installed security software by piping the output of other reconnaissance commands (like `tasklist` or `whoami`) through `findstr` to filter for specific terms. The rule specifically looks for command-line arguments containing keywords such as "avira", "cb", "cylance", "defender", "kaspersky", "kes", "mc", "sec", "sentinel", "symantec", and "virus", including variations with double quotes.
Detects the usage of 'Squirrel.exe' or 'Update.exe' to download arbitrary files. These binaries are often part of Electron-based software installations (e.g., Slack, Teams, Discord) and can be abused for proxy execution and file download, leveraging their trusted status.
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