Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

5,879 detections

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.
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Arnold Chan@slaz
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Hunters
2 months ago
001
Detects specific command strings ('proxy_open', 'proxy_data', 'proxy_close') associated with the Koktevrat Android RAT's tunneling functionality. The rule monitors outbound TCP traffic to identify the initiation, data transfer, and termination phases of a proxy connection, leveraging Suricata flowbits to track the state of the C2 tunnel.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
001
Detects specific command strings ('proxy_open', 'proxy_data', 'proxy_close') associated with the Koktevrat Android RAT's tunneling functionality. The rule monitors outbound TCP traffic to identify the initiation, data transfer, and termination phases of a proxy connection, leveraging Suricata flowbits to track the state of the C2 tunnel.
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Arnold Chan@slaz
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Hunters
2 months ago
001
Detects specific command strings ('proxy_open', 'proxy_data', 'proxy_close') associated with the Koktevrat Android RAT's tunneling functionality. The rule monitors outbound TCP traffic to identify the initiation, data transfer, and termination phases of a proxy connection, leveraging Suricata flowbits to track the state of the C2 tunnel.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
001
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.
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Arnold Chan@slaz
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Hunters
2 months ago
005
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.
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Arnold Chan@slaz
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Hunters
2 months ago
105
This rule detects potentially malicious use of residential proxies by monitoring for outbound HTTP CONNECT requests originating from consumer devices in the internal network. The use of HTTP CONNECT is a common method for establishing tunnels through proxies to mask C2 communication or facilitate unauthorized access, often associated with botnets or malicious proxy networks.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
001
This rule detects potentially malicious use of residential proxies by monitoring for outbound HTTP CONNECT requests originating from consumer devices in the internal network. The use of HTTP CONNECT is a common method for establishing tunnels through proxies to mask C2 communication or facilitate unauthorized access, often associated with botnets or malicious proxy networks.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
001
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.
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Arnold Chan@slaz
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Hunters
2 months ago
001
Detects anomalous TLS traffic characterized by an empty Server Name Indication (SNI) field in the TLS handshake, combined with a high frequency of such connections. This behavior is indicative of certain proxy protocols like Xray VLESS with REALITY, which are often used to evade Deep Packet Inspection (DPI) and traffic shaping policies by disguising C2 or tunneling traffic as legitimate-looking TLS connections.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
001
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.
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Kaung Khant Ko@kaungkhantko
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Detections.ai Community
2 months ago
5015
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.
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Ankit Mehta@Secvyn
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Detections.ai Community
2 months ago
103
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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Arnold Chan@slaz
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Midnight Slayer
2 months ago
003
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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Arnold Chan@slaz
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Hunters
2 months ago
103
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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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
103
Detects network connections to known JeetBot infrastructure domains and IP addresses. The rule specifically identifies potential exfiltration of Twitch OAuth tokens via URL parameters or interaction with known token-collection proxy endpoints, which are associated with the JeetBot/Twitch Enhanced Viewer credential harvesting campaign.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
103
Detects network connections to known JeetBot infrastructure domains and IP addresses. The rule specifically identifies potential exfiltration of Twitch OAuth tokens via URL parameters or interaction with known token-collection proxy endpoints, which are associated with the JeetBot/Twitch Enhanced Viewer credential harvesting campaign.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
003
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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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
003
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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Arnold Chan@slaz
Defender - KQL
2 months ago
003
Detects network connections originating from browser processes to known JeetBot command and control (C2) infrastructure. The rule identifies suspicious C2 communication and, specifically, attempts at token exfiltration by monitoring for auth tokens in the URL of requests directed to known JeetBot hosts and Twitch-related infrastructure.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
203
Detects network connections originating from browser processes to known JeetBot command and control (C2) infrastructure. The rule identifies suspicious C2 communication and, specifically, attempts at token exfiltration by monitoring for auth tokens in the URL of requests directed to known JeetBot hosts and Twitch-related infrastructure.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
003
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