Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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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 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.
Detects the presence of the 'Mushr00w' PHP web shell, typically associated with exploitation of vulnerabilities in WordPress plugins such as Super Forms or Elementor Pro. The rule looks for identifying strings within the file, including specific filenames, HTML title tags, and common PHP file upload function signatures used by this shell.
Detects periodic execution cycles of ERAAgent.exe that involve memory protection changes, characteristic of the SLEEPWALKER malware's XOR-decrypt-execute-reencrypt loop scheduled by a cron-like mechanism.
Detects DragonForce ransomware note (readme.txt) referencing known DragonForce Tor negotiation/blog onion addresses
Detects outbound HTTP POST requests to suspicious .ru domains and DNS queries for these domains, indicative of C2 beaconing activity likely associated with a supply chain compromise affecting the Pub.dev ecosystem.
Detects the ProRAM macOS ARM64 Mach-O implant, identified by specific internal codesign strings, download URLs (cloudfront.net/helper), and local file drop paths ($HOME/updated) consistent with the Funnull threat actor's activity.
Matches known malicious dlp.sh/dlp-docker.sh Terraform module scripts used in Coder registry supply chain attack (common, aider, rstudio-server, windows-rdp, zed variants)
Detects cached malicious dlp.sh/dlp-docker.sh Terraform module artifacts served from the compromised registry.coder.com infrastructure
Detects a hardcoded PEM RSA public key embedded alongside JSCeal-specific compiled V8 bytecode obfuscation artifacts, used to encrypt exfiltrated data or C2 communications
Detects the download of a JavaScript module named JSCeal, which contains code indicative of an HTTPS interception proxy. The rule looks for Node.js-based server creation code combined with cryptographic operations like keypair generation, certificate creation, and PEM conversion, excluding common legitimate JavaScript libraries and CDNs.
Detects known malicious file hashes for GRAYRABBIT delivery chain components: trojanized 7zp.dll loader, encrypted PE loader shellcode, and GRAYRABBIT backdoor core.dll, gated on PE structural validity and filesize
Detects known malicious file hashes for GRAYRABBIT delivery chain components: trojanized 7zp.dll loader, encrypted PE loader shellcode, and GRAYRABBIT backdoor core.dll, gated on PE structural validity and filesize
Detects trojanized 7z.dll loader and encrypted GRAYRABBIT payload components dropped during the UNC3569 exploit chain
Detects UNC3569/GRAYRABBIT shellcode combining call/pop self-location, PEB InLoadOrderModuleList walk, and the specific XOR-then-ROR8 export-name hashing loop observed in the GRAYRABBIT loader chain, requiring multiple distinctive elements together to reduce false positives on generic shellcode idioms
Detects instances where a RedTail malware variant enumerates processes via the /proc filesystem to identify and terminate previous instances of itself using a kill signal.
Detects instances where a RedTail malware variant enumerates processes via the /proc filesystem to identify and terminate previous instances of itself using a kill signal.
Detects instances where a RedTail malware variant enumerates processes via the /proc filesystem to identify and terminate previous instances of itself using a kill signal.
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