Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
301 detections
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Detects network traffic directed towards Telegram shortened URLs (t.me) which is a common command-and-control (C2) communication channel used by Vidar and other malware families to exfiltrate data or retrieve instructions.
Detects network activity associated with the ErrTraffic malware, specifically targeting JSON-RPC 'eth_call' requests to Polygon blockchain smart contracts used for C2 resolution and subsequent DNS queries to known malicious domains used for C2 infrastructure.
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.
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.
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.
Detects repeated TLS connections to a known suspicious IP address that masquerades as gitlab.com using the TLS Server Name Indication (SNI) extension. This pattern is indicative of potential command and control (C2) traffic from compromised or unauthorized GitRunner infrastructure.
Detects HTTP and TLS traffic patterns indicative of data exfiltration to Slack, specifically targeting hardcoded Slack API tokens, Slack channel IDs in HTTP request bodies, or traffic directed to hooks.slack.com, commonly associated with malicious npm packages.
Detects DNS queries indicative of OAST (Out-of-Band Application Security Testing) infrastructure usage by the LucidPawn dropper, specifically targeting domains associated with dnslog.ink and digimg.store. This pattern suggests potential beaconing or exfiltration attempts.
Detects DNS queries indicative of OAST (Out-of-Band Application Security Testing) infrastructure usage by the LucidPawn dropper, specifically targeting domains associated with dnslog.ink and digimg.store. This pattern suggests potential beaconing or exfiltration attempts.
Detects DNS queries indicative of OAST (Out-of-Band Application Security Testing) infrastructure usage by the LucidPawn dropper, specifically targeting domains associated with dnslog.ink and digimg.store. This pattern suggests potential beaconing or exfiltration attempts.
Detects network activity associated with the SilkParasite botnet. The rule identifies inbound/outbound HTTP heartbeat check-ins using a specific URI pattern (/ping?h=) and direct TCP connections to a known malicious C2 IP address.
Detects outbound HTTP requests to the Telegram Bot API (/sendMessage) which are often used by malware (such as 'Exvicy' or 'Small Sieve') for command and control or exfiltration notification, utilizing the Telegram bot token structure in the URI.
Detects HTTP POST requests directed to the '/api.php' endpoint with specific patterns characteristic of Exvicy/ClickFix malware C2 communication. The rule identifies suspicious action parameters (check, dl, or cb) and a specific 48-character hexadecimal 'k' parameter used for identifying infected state.
Detects HTTP POST requests directed at etherscan.io containing 'eth_call' in the request body. This pattern is indicative of the GHAPPIER / PolinRider malware family utilizing the Ethereum blockchain's public JSON-RPC interface as a dead-drop resolver for command-and-control communication.
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.
Detects outbound HTTP POST requests to the Polygon blockchain using the 'eth_call' JSON-RPC method, specifically targeting a known smart contract address associated with EtherHiding-style C2 infrastructure. This behavior indicates an adversary utilizing decentralized blockchain storage or services as an unconventional command-and-control channel to resolve malicious configurations or payloads.
This rule detects outbound HTTP requests to the blogspot.com domain, which is often used by malware for command-and-control (C2) communication, staging, or as an initial check-in mechanism. Attackers frequently abuse legitimate blogging platforms to host malicious content and evade network-based detections that might otherwise flag unknown or suspicious domains.
Detects outbound network traffic associated with identified ClickFix CPaaS payload domains and associated API endpoints. The rule monitors for specific malicious domain contact (comicstar.lat, babybon.cfd, merkantalolol.asia) and the use of the '/api/index.php?a=init' endpoint, which is indicative of the ClickFix payload delivery mechanism.
Detects network activity associated with the SloppyRAT malware, specifically identifying C2 authentication attempts via HTTP POST requests containing specific headers and user-agent strings, as well as TLS connections to known malicious domains and IP addresses.
Detects command-and-control (C2) communication patterns associated with the Graphalgo framework, which utilizes the Arbitrum Sepolia blockchain for dead-drop resolution and task orchestration. The rules monitor for specific JSON-RPC method calls ('eth_call', 'setCPubKey') and repeated polling of contract functions ('serviceData') characteristic of this threat actor's network behavior.
Detects network traffic to GitHub API endpoints that matches patterns indicative of RUSTYSHADE malware communicating with a private repository for command and control. The rule specifically looks for access to repository content paths related to commands, results, heartbeats, screenshots, or information files, coupled with the inclusion of an Authorization token in the HTTP header.
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