Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects HTTP GET requests to a specific self-hosted GitLab domain 'gitlab.bzctoons.net' that attempt to download a file named 'protected.zip', which is associated with the retrieval of StealC information-stealing malware by the Amadey loader.
Detects HTTP traffic patterns associated with LokiBot malware beaconing to a hardcoded command and control (C2) endpoint. The rule specifically looks for established network connections to identified malicious domains or IP addresses using the /fre.php URI path.
This rule monitors DNS traffic for queries to the domain 'chongdaotang.net', which is associated with a phishing campaign leveraging legal threat lures to harvest credentials. Detecting these queries indicates that a host in the network is attempting to resolve a domain used in a known credential harvesting attack.
This rule detects a specific typosquatting pattern used by the EvilTokens phishing kit. It looks for HTTP traffic where the host contains 'workers.dev' and matches a regular expression for 'viewdoc[a-z0-9\-]+\.workers\.dev'. This indicates an attempt to mimic legitimate Cloudflare Workers domains for phishing purposes, specifically targeting the 'viewdoc' pattern often seen in document-sharing lures.
This rule detects network traffic indicative of the 'EvilTokens' phishing kit, specifically targeting Microsoft OAuth Device Code flow. It looks for HTTP POST requests to the '/api/device/start' URI on domains hosted on Cloudflare Workers ('.workers.dev'). This pattern suggests an attempt to initiate a device code phishing attack, where adversaries trick users into entering credentials or codes to grant access to malicious applications.
Detects outbound HTTP POST requests to file.io originating from a Go-based HTTP client, consistent with the GopherWhisper APT C2 or exfiltration activity.
Detects a specific network handshake pattern (05 01 00) associated with the SystemBC malware acting as a SOCKS5 proxy. This pattern is characteristic of the initial communication phase used by SystemBC to establish C2 connectivity, often utilized by ransomware affiliates.
Detects outbound HTTP POST requests containing keywords indicative of credential and data theft associated with VBV Stealer malware, specifically looking for fields related to passwords, cookies, or wallets in the request body.
This rule detects outbound TCP traffic from internal network hosts to known Tor relay ports (9001, 9030), which is a common communication pattern for the NBLock ransomware strain to establish a command and control channel through the Tor network.
Detects outbound network traffic to the ScreenConnect service specifically targeting the /Relay/ path, which is commonly abused by ransomware operators (e.g., Interlock, RansomHub) for establishing unauthorized remote access and command-and-control channels.
Detects outbound HTTP POST requests to file.io originating from a Go-based HTTP client, consistent with the GopherWhisper APT C2 or exfiltration activity.
Detects outbound HTTP POST requests containing keywords indicative of credential and data theft associated with VBV Stealer malware, specifically looking for fields related to passwords, cookies, or wallets in the request body.
Detects outbound network traffic to the ScreenConnect service specifically targeting the /Relay/ path, which is commonly abused by ransomware operators (e.g., Interlock, RansomHub) for establishing unauthorized remote access and command-and-control channels.
Detects anomalous HTTP GET requests targeting the ClawHub API for 'skills' that match known patterns of malicious file downloads, specifically identifying poc.py scripts or skill.md files which are indicative of the ClawHavoc campaign activity.
This rule monitors HTTP traffic for the presence of a Python Pickle deserialization payload in the response body. Attackers use serialized Python objects to achieve remote code execution when these objects are improperly deserialized by a client application. This signature specifically looks for the hexadecimal byte sequence associated with the pickle protocol in conjunction with HTTP responses containing text or binary data.
Detects anomalous HTTP responses containing high-entropy, potentially multi-layered obfuscated payloads. The rule specifically monitors for patterns suggesting Base64, ROT13, and Hex encoding in the response body, which is consistent with methods used to deliver obfuscated malicious AI skills or scripts via web traffic.
Detects network traffic associated with the Turla group's STOCKSTAY malware, specifically identifying outbound WebSocket upgrade requests directed to the known command-and-control domain weatherdataai.theworkpc.com.
Detects HTTP GET requests for specific malicious archives (calculator.rar, EditorToolsPdf.zip) originating from suspected compromised Ukrainian domains (basecon.com.ua, online.zp.ua). This behavior is associated with the STOCKSTAY malware used by the threat actor Turla.
This rule monitors HTTP traffic for the presence of a Python Pickle deserialization payload in the response body. Attackers use serialized Python objects to achieve remote code execution when these objects are improperly deserialized by a client application. This signature specifically looks for the hexadecimal byte sequence associated with the pickle protocol in conjunction with HTTP responses containing text or binary data.
Detects anomalous HTTP responses containing high-entropy, potentially multi-layered obfuscated payloads. The rule specifically monitors for patterns suggesting Base64, ROT13, and Hex encoding in the response body, which is consistent with methods used to deliver obfuscated malicious AI skills or scripts via web traffic.
Detects suspicious network activity originating from the InstallUtil.exe process. InstallUtil is a legitimate Windows .NET utility that can be abused as a LOLBin (Living-off-the-Land Binary) to proxy the execution of malicious payloads, potentially bypassing application control mechanisms.
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