Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects network communication patterns associated with the RUSTYSHADE malware family, which leverages the GitHub REST API for command-and-control (C2) operations. The rule monitors for specific SNI indicators, GitHub API URL patterns for command retrieval, task/result file interactions, exfiltration of files (screenshots/webcam photos), and custom encrypted request body markers.
Detects DNS queries, HTTP requests, and TLS connections associated with known APT36 (Transparent Tribe) malicious infrastructure, specifically targeting typosquatted news domains used for staging payloads.
Detects execution of processes associated with QuasarRAT or references to its configuration files, originating from or involving files and processes named 'UBPUpdater.exe' or 'UBPPatch.Psh'. Also identifies network connections via FTP or involving configuration files ('config.Ini') initiated by these specific processes, which may indicate malicious activity, command and control, or data exfiltration.
Detects outbound HTTP requests to known Kimsuky command and control (C2) infrastructure associated with the Stella_Gary campaign. The rule monitors for specific URI patterns ('/unicorn/mort.php' or '/unicorn/uni.txt') commonly used by this threat actor for beaconing.
This rule detects a correlation between host-level reconnaissance activity using WMI (via PowerShell or WMIC) to query system information, followed by network exfiltration to a known C2 IP address over a specific URI within a 10-minute window.
This rule detects a correlation between host-level reconnaissance activity using WMI (via PowerShell or WMIC) to query system information, followed by network exfiltration to a known C2 IP address over a specific URI within a 10-minute window.
Detects network connection events to known domains and subdomains associated with the SilkParasite threat actor. The rule specifically monitors for connections to specific parent domains (natcommunzu.com, kginfocom.com, mfa-uz.com) and subdomains utilizing service-oriented naming patterns (e.g., mail, service, help, storage, support, microsoft, post) commonly used by this actor for command and control infrastructure.
Detects a host making 3 or more outbound connections within 5 minutes to AWS-hosted IP addresses known to host NJRAT C2 infrastructure from the GTA6 lure campaign, consistent with periodic RAT beaconing rather than a one-off incidental connection.
Detects a host making 3 or more outbound connections within 5 minutes to AWS-hosted IP addresses known to host NJRAT C2 infrastructure from the GTA6 lure campaign, consistent with periodic RAT beaconing rather than a one-off incidental connection.
This rule monitors network traffic logs for HTTP requests directed toward domains identified as potentially malicious (gstatcs.com, webfaset.com, bulder.online). It further filters for events involving common web activity patterns, such as Google Tag Manager references or general HTTP/web traffic, which may indicate command and control communication or beaconing behavior.
Detects specific malformed HTTP request patterns associated with the Casbaneiro (Metamorfo) banking trojan. The rules identify suspicious beaconing attempts, including specific URI structures ('/$p', '/$or?u=') and malformed headers (missing Host header combined with specific Content-Length anomalies).
This rule monitors endpoint telemetry for known indicators of compromise associated with the Casbaneiro/Ousaban banking trojan. It identifies activity across network connections (IPs and domain patterns), DNS queries for specific C2 domains, and the presence or execution of known malicious file hashes (e.g., PDF lures, HTA, AutoIt scripts, and payload binaries).
This rule detects network traffic patterns associated with the Koktevrat Android RAT, specifically identifying periodic TLS beacons (heartbeats) destined for known C2 domains (streams-tv.lol and stream-plus.lat). The behavior suggests the use of Android's AlarmManager to schedule recurring callbacks to the C2 infrastructure.
This rule detects network communication (via DNS queries, web logs, or device network events) with a list of known malicious domains associated with Command and Control (C2) activity.
Detects malicious network connections, file downloads, or process execution associated with the REVSTEALER malware campaign, which utilizes hijacked YouTube channels to distribute fake game-cheat videos that lure users into downloading 'resightloader.exe' from specific malicious domains.
This rule detects the execution of processes associated with CLI proxy routers (such as CLIProxyAPI or router-for-me) that establish network connections to multiple AI provider APIs (e.g., Anthropic, OpenAI, Google Gemini) within a short window. This pattern is indicative of efforts to bypass rate-limiting or allowlisting mechanisms commonly used by corporate environments to control and audit AI service interactions.
Detects network communication with Google Sheets API endpoints that contain specific indicators of C2 behavior, such as suspicious User-Agents, specific spreadsheet cell references, or input options characteristic of automated data exfiltration or command retrieval.
This rule detects the process 'charmap.exe' establishing an outbound network connection to a known AsyncRAT command-and-control (C2) IP address and port. This behavior is indicative of process injection where the legitimate Windows Character Map utility is utilized as a host process for malicious AsyncRAT payload execution.
Detects network connections to command-and-control infrastructure associated with the JeetBot/Twitch Enhanced Viewer malicious browser extension. The rule triggers on connections to known malicious domains or IPs, as well as specific API endpoints on ambiguous domains that are used for exfiltrating Twitch OAuth tokens.
Detects network connections to command-and-control infrastructure associated with the JeetBot/Twitch Enhanced Viewer malicious browser extension. The rule triggers on connections to known malicious domains or IPs, as well as specific API endpoints on ambiguous domains that are used for exfiltrating Twitch OAuth tokens.
Detects network connections to command-and-control infrastructure associated with the JeetBot/Twitch Enhanced Viewer malicious browser extension. The rule triggers on connections to known malicious domains or IPs, as well as specific API endpoints on ambiguous domains that are used for exfiltrating Twitch OAuth tokens.
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