Detections

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

301 detections

Detects network activity associated with the KREMLIN browser extension communicating with a known command and control domain (luizestrelhashapr.online). The rule monitors DNS queries, TLS SNI connections, and HTTP WebSocket upgrade requests to identify potential C2 communication.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
009
Detects network activity initiated by Node.js processes towards specific Infura and Alchemy RPC endpoints for the Sepolia testnet, including specific JSON-RPC queries containing potential malicious contract addresses. This pattern is indicative of C2 communication using legitimate Web3 infrastructure.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
102
This rule detects network traffic originating from internal hosts to Slack's domain that contains hardcoded Slack bot tokens and specific Slack channel IDs associated with a malicious npm supply chain campaign (indexed-btree). This indicates successful exfiltration of sensitive configuration credentials or data to an attacker-controlled Slack environment.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
Detects anomalous C2 traffic associated with SectopRAT that leverages JSON-RPC 'eth_call' methods on 'binance.org'. The detection monitors for a specific POST request pattern followed by a response containing 'START' and 'FINISH' markers within the result field, indicating command-and-control communication disguised as blockchain interactions.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
000
Detects outbound network traffic from internal hosts to Telegram shortened URLs (t.me). The detection looks for TLS SNI strings or HTTP requests targeting t.me domains, specifically focusing on non-browser user-agent strings which are indicative of Vidar-style malware using Telegram as a dead-drop resolver for C2 operations.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects HTTP responses containing JavaScript-based anti-bot challenge pages consistent with the GhostCode toolkit, and subsequent HTTP requests containing tracking tokens used for victim verification after passing the challenge.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
004
Detects outbound network requests to popular Large Language Model (LLM) API endpoints originating from processes that do not appear to be standard web browsers or identified legitimate development tools. This behavior may indicate an unauthorized script, malware, or compromised process attempting to use LLM APIs for C2, data exfiltration, or automated reconnaissance.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
000
Detects network traffic initiated by the WeaselBiscuit loader targeting api.npoint.io, a known free JSON storage service often abused by adversaries as a dead drop resolver for Command and Control (C2) configurations or secondary payloads.
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Arnold Chan@slaz
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Hunters
1 month ago
003
This rule detects HTTP requests directed at suspicious URI patterns associated with 'LeakySensey' logs. It specifically monitors for attempts to access transaction or compromise log endpoints, which could indicate an attacker attempting to enumerate leaked data or verify compromised credentials from an exposed log repository.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
004
This rule detects network traffic directed at the Telegram Bot API (api.telegram.org) where the request URI indicates a bot action ('/bot' followed by 'sendMessage') and the HTTP request body contains the keyword 'VIEW'. This pattern is commonly associated with C2 beacons using Telegram as an intermediary service to send status or command results from compromised hosts.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
004
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.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
103
Detects suspicious network traffic to Ethereum Sepolia testnet RPC endpoints (Alchemy and Infura) indicative of the 'indexed-btree' malware campaign. The rule monitors for characteristic C2 polling patterns, specifically requests involving malicious contract addresses and specific RPC methods (eth_call, eth_getStorageAt) associated with this activity.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects the abuse of the Google Meet 'linkredirect' service to facilitate phishing attacks, commonly used to bypass security filters and redirect users to Adversary-in-the-Middle (AiTM) phishing landing pages.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
000
Detects network activity associated with the SilverFox relay dispatcher, including specific cache-busting URI patterns, C2 infrastructure hosted on Cloudflare Workers, and the delivery of decoy WeChat installer links.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
102
Detects network activity associated with the 'SilverFox' malware family's command-and-control relay dispatcher. The rules identify specific HTTP requests to 'api.php', responses containing 'download_link', and the serving of legitimate WeChat installer payloads as a fallback mechanism for evasion, including the use of cache-busting parameters.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
102
Detects outbound network communication patterns (DNS lookups and TLS SNI traffic) associated with the Koktevrat Android RAT. The rule monitors for connections to known malicious domains used for command-and-control (C2) operations.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
002
This rule detects HTTP requests directed at suspicious URI patterns associated with 'LeakySensey' logs. It specifically monitors for attempts to access transaction or compromise log endpoints, which could indicate an attacker attempting to enumerate leaked data or verify compromised credentials from an exposed log repository.
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Arnold Chan@slaz
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Hunters
1 month ago
002
This rule detects HTTP requests directed at suspicious URI patterns associated with 'LeakySensey' logs. It specifically monitors for attempts to access transaction or compromise log endpoints, which could indicate an attacker attempting to enumerate leaked data or verify compromised credentials from an exposed log repository.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
002
This rule detects DNS queries directed at known OAST (Out-of-band Application Security Testing) domains, such as 'dnslog.ink' and 'digimg.store', which are commonly used in the 'LucidPawn' framework for verifying external connectivity or exfiltrating data during initial discovery and post-exploitation phases.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
000
Detects HTTP GET requests associated with the MovieReaper loader, specifically targeting shellcode fragment fetches from the deadhub.org domain, a specific fallback IP address, or requests to identifiable decoy asset paths used by the malware for staging or C2 communication.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detection of suspicious network traffic directed toward Slack APIs, characterized by the use of hardcoded Slack bot tokens and specific communication patterns associated with the 'indexed-btree' npm malware family, indicating potential C2 communication or data exfiltration.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
000
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