Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects RedTail malware samples: UPX-packed, statically linked ELF executables across multiple architectures (x86_64, ARM, ARM64, i686, RISC-V). Requires UPX packing signature to co-occur with RedTail-specific filename strings to reduce false positives on generic UPX-packed binaries.
Detects RedTail malware samples: UPX-packed, statically linked ELF executables across multiple architectures (x86_64, ARM, ARM64, i686, RISC-V). Requires UPX packing signature to co-occur with RedTail-specific filename strings to reduce false positives on generic UPX-packed binaries.
Matches known RedTail malware payloads and staging scripts by exact SHA-256 hash equality
Matches known RedTail malware payloads and staging scripts by exact SHA-256 hash equality
Detects KATARU IoT malware samples embedding the DirtyFrag (CVE-2026-43284) Linux local privilege escalation exploit copied from public PoC code, as part of a chained LPE attempt targeting root shell spawning
Detects network traffic associated with SloppyRAT C2 beacons by identifying specific user-agent strings ('CommandExecutor/1.0', 'Mozilla/5.0 (compatible; DLLMemLoader/1.0)') or anomalous API path requests containing 'X-API-Key' or 'Authorization: Bearer' headers.
This rule detects inbound HTTP GET requests to a specific IP address (103.86.86.244) requesting a file named 'deploy.ps1'. This behavior is characteristic of adversaries using PowerShell one-liners (cradles) like 'irm' (Invoke-RestMethod) or 'iex' (Invoke-Expression) to fetch and execute malicious scripts directly from a remote C2 infrastructure.
This rule detects inbound HTTP GET requests to a specific IP address (103.86.86.244) requesting a file named 'deploy.ps1'. This behavior is characteristic of adversaries using PowerShell one-liners (cradles) like 'irm' (Invoke-RestMethod) or 'iex' (Invoke-Expression) to fetch and execute malicious scripts directly from a remote C2 infrastructure.
Detects Adblock.dll used by Docro Hijacker to bypass Chrome Secure Preferences HMAC-SHA256 integrity checks and register infected browser UUID via vendralo[.]info
Detects Adblock.dll used by Docro Hijacker to bypass Chrome Secure Preferences HMAC-SHA256 integrity checks and register infected browser UUID via vendralo[.]info
Detects HVNC backdoor payload containing hardcoded AV/EDR process names combined with process enumeration APIs and a hex-suffixed mutex naming pattern, reducing false positives from generic AV name or API string matches alone
Detects command-line execution containing 'Processes.KillRunningProcesses', a string characteristic of the OpnKey ransomware builder configuration, suggesting an intent to terminate critical processes to facilitate encryption.
Detects HVNC backdoor payload containing hardcoded AV/EDR process names combined with process enumeration APIs and a hex-suffixed mutex naming pattern, reducing false positives from generic AV name or API string matches alone
Detects the malicious NFe-themed ZIP dropper MOTOROLA_MOB_COM_NFe_2026-07-16_21781624.zip by known hash and archive structure
Detects HVNC final payload masquerading as Windows Update Assistant, combining Firefox credential theft strings, hardcoded AV process names, and XOR-encoded C2 host configuration
Detects the Silver Fox HVNC malware dropper initiating browser instances via the command line to access known malicious C2 domains or infrastructure. The rule specifically monitors for known malicious binaries (UpdateAssistant.exe, AppUpdateHelper.exe, SysMaintenance.exe) launching browsers with suspicious command-line parameters associated with this campaign.
This rule detects potentially malicious keylogging activity by identifying binaries named UpdateAssistant.exe or AppUpdateHelper.exe that import keylogging-related APIs (GetAsyncKeyState/GetKeyboardState). To minimize false positives, the rule correlates these findings with suspicious metadata such as unsigned binaries, untrusted signers, or execution from non-standard directories like AppData subfolders or Temp.
This rule detects potentially malicious keylogging activity by identifying binaries named UpdateAssistant.exe or AppUpdateHelper.exe that import keylogging-related APIs (GetAsyncKeyState/GetKeyboardState). To minimize false positives, the rule correlates these findings with suspicious metadata such as unsigned binaries, untrusted signers, or execution from non-standard directories like AppData subfolders or Temp.
Detects DragonForce ransomware note (readme.txt) referencing known DragonForce Tor negotiation/blog onion addresses
Detects Linux processes masquerading as 'php-fpm' or 'postgres' that match known SHA-256 hashes associated with the RedTail malware family. The rule identifies processes attempting to hide their identity using techniques similar to prctl(PR_SET_NAME) to rename themselves while running malicious code.
Detects indicators of the ProRAM malware dropper, specifically identifying the download of 'sideload.exe' from an external IP or the presence of file artifacts related to its staging process in %TEMP% and %LOCALAPPDATA% directories.
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