Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects outbound network connections (HTTPS/TLS) to known malicious domains used by TA419 for AitM (Adversary-in-the-Middle) phishing campaigns. These domains are identified as part of a spoofed OneDrive document/file sharing theme intended to steal user credentials.
Detects DNS queries, HTTP host headers, and TLS SNI traffic associated with known credential-phishing domains used by the threat actor TA419. The rule monitors for communication to a specific list of domains identified as malicious or used in phishing campaigns.
Detects outbound HTTPS traffic to domains using file-sharing or cloud-sync themed keywords in combination with specific top-level domains (TLD) often associated with suspicious infrastructure. The rule specifically excludes well-known legitimate services such as OneDrive, SharePoint, Dropbox, Box, iCloud, and Google, and includes a detection threshold to minimize alerts for incidental traffic.
Detects outbound HTTPS traffic to domains using file-sharing or cloud-sync themed keywords in combination with specific top-level domains (TLD) often associated with suspicious infrastructure. The rule specifically excludes well-known legitimate services such as OneDrive, SharePoint, Dropbox, Box, iCloud, and Google, and includes a detection threshold to minimize alerts for incidental traffic.
This rule detects established TLS connections to external hosts that utilize a specific self-signed certificate associated with TA419 phishing infrastructure. The rule specifically flags connections presenting a TLS certificate with Subject and Issuer fields containing 'C=US, ST=Kansas, L=Millsstad, O=Castro Inc, CN=CI'.
This rule detects established TLS connections to external hosts that utilize a specific self-signed certificate associated with TA419 phishing infrastructure. The rule specifically flags connections presenting a TLS certificate with Subject and Issuer fields containing 'C=US, ST=Kansas, L=Millsstad, O=Castro Inc, CN=CI'.
This rule detects established TLS connections to external hosts that utilize a specific self-signed certificate associated with TA419 phishing infrastructure. The rule specifically flags connections presenting a TLS certificate with Subject and Issuer fields containing 'C=US, ST=Kansas, L=Millsstad, O=Castro Inc, CN=CI'.
This rule detects established TLS connections to external hosts that utilize a specific self-signed certificate associated with TA419 phishing infrastructure. The rule specifically flags connections presenting a TLS certificate with Subject and Issuer fields containing 'C=US, ST=Kansas, L=Millsstad, O=Castro Inc, CN=CI'.
Detects outbound HTTP requests or TLS traffic to known C2 domains associated with APT28/UAC-0001 related to the CVE-2026-21509 campaign.
Detects outbound HTTP traffic from internal hosts directed toward a known IP address identified as hosting AdaptixC2 infrastructure, specifically associated with the distribution of a trojanized 'mscopilot.exe' executable.
Detects network activity associated with the RatHat Android malware, specifically tracking device registration, log uploads to '/api/node/', and subsequent WebSocket protocol upgrades used for command-and-control communications.
REVSTEALER REF2859 - TLS SNI match to known lure/delivery domain
Detects network activity associated with the APT36 threat group, specifically HTTP requests for PowerShell stagers (irm/iex) from 'indiatodays.org' and TLS connections to that same domain, which is identified as a typosquat used for command and control or ingress tool transfer.
Detects incoming HTTP GET requests containing a specific URI path '/favorite_list_2x_m500_ico.jpg' associated with the Ted Backdoor, commonly used by North Korean state-sponsored threat actors including APT37, Lazarus Group, and Kimsuky for Command and Control (C2) beaconing.
Detects HTTP GET requests to raw.githubusercontent.com that include an 'Authorization: token' header, indicating the potential use of a GitHub Personal Access Token (PAT) for command and control or data exfiltration by the Kimsuky threat group.
Detects outbound HTTP GET requests to Pastebin.com with a path starting with /raw/. This pattern is commonly used by threat actors, including the Kimsuky APT group, to retrieve secondary payloads, configuration files, or malicious scripts from a public repository.
Detects anomalous HTTP GET requests to the Microsoft Teams trap-exp/tokens endpoint that do not carry the expected 'Teams' user-agent string. This pattern is indicative of the DragonForce backdoor attempting to illicitly request Skype authentication tokens.
Detects anomalous HTTP GET requests to the Microsoft Teams trap-exp/tokens endpoint that do not carry the expected 'Teams' user-agent string. This pattern is indicative of the DragonForce backdoor attempting to illicitly request Skype authentication tokens.
Detects anomalous HTTP GET requests to the Microsoft Teams trap-exp/tokens endpoint that do not carry the expected 'Teams' user-agent string. This pattern is indicative of the DragonForce backdoor attempting to illicitly request Skype authentication tokens.
This rule detects HTTP GET requests to a specific IP address (62.60.226.185) attempting to download a file named 't0907.exe'. This pattern is associated with the delivery phase of the 2CLoader malware.
This rule detects HTTP GET requests to known malicious domains or URI patterns associated with fake video-conferencing lures. These lures redirect users to download RMM (Remote Monitoring and Management) MSI installers, often masquerading as legitimate software like Adobe Reader or video conferencing tools, as part of a social engineering campaign for initial access.
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