Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects DNS A record lookups for the domain 'mail.uaiubifas.top', which is associated with GRAYRABBIT C2 activity linked to UNC3569. This domain is known to be used for command and control communications.
Detects DNS A record lookups for the domain 'mail.uaiubifas.top', which is associated with GRAYRABBIT C2 activity linked to UNC3569. This domain is known to be used for command and control communications.
Detects DNS A record lookups for the domain 'mail.uaiubifas.top', which is associated with GRAYRABBIT C2 activity linked to UNC3569. This domain is known to be used for command and control communications.
Detects network activity (HTTP, TLS SNI, and DNS) associated with the domain 'noht1ng.top', which is linked to the GRAYRABBIT malware utilized by the threat actor UNC3569.
Detects DNS queries originating from an internal host to 'mail.uaiubifas.top', which is associated with GRAYRABBIT command-and-control (C2) activity.
Detects DNS queries originating from an internal host to 'mail.uaiubifas.top', which is associated with GRAYRABBIT command-and-control (C2) activity.
Detects DNS queries and TLS SNI traffic directed towards known phishing domains that mimic Brazilian financial and government portals, specifically targeting 'gerenciadorcaixa.digital', 'aapj.digital', and 'receitafederal.digital'.
This rule monitors network connections, DNS resolutions, and email URLs to detect traffic communicating with a known adversary-in-the-middle (AiTM) phishing infrastructure panel. By correlating security logs, DNS events, and email URL data against this specific indicator of compromise, it identifies potential interaction with phishing sites designed to capture credentials or session tokens.
Detects outbound HTTP POST requests to suspicious .ru domains and DNS queries for these domains, indicative of C2 beaconing activity likely associated with a supply chain compromise affecting the Pub.dev ecosystem.
This rule detects high-volume DNS resolution of domains ending in the .shop TLD from internal hosts, which may indicate interaction with a cluster of infrastructure used by the DoppelCart fake-shop campaign.
This rule monitors DNS and email traffic for domains ending in .shop that fuzzy-match against a predefined watchlist of corporate brand names. This behavior is commonly associated with phishing campaigns, brand impersonation, or typosquatting, where attackers use similar-looking domains to lure users into revealing sensitive information or credentials.
This rule monitors DNS and email traffic for domains ending in .shop that fuzzy-match against a predefined watchlist of corporate brand names. This behavior is commonly associated with phishing campaigns, brand impersonation, or typosquatting, where attackers use similar-looking domains to lure users into revealing sensitive information or credentials.
Detects unauthorized devices or processes attempting to communicate with the Telegram Bot API (/sendMessage or /sendDocument) and monitors for credential-related terms within the request metadata. This often indicates the use of Telegram as a command-and-control (C2) channel for data exfiltration or credential theft.
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 interaction with known infrastructure associated with the PREY-0058 campaign, which utilizes Adversary-in-the-Middle (AiTM) phishing lures mimicking passkey or MFA registration pages to target Microsoft 365 and other SaaS applications.
This rule monitors for DNS queries, HTTP requests to '/cli/check', and TLS SNI traffic directed towards the domain 'coder-infra.com', which is associated with a suspected compromise of a Coder registry.
Detects network activity from infrastructure provisioner tools (Terraform, Coder) or shell processes attempting to connect to suspicious domains (e.g., coder-infra.com) that resemble legitimate infrastructure domains. This activity is indicative of credential theft, specifically targeting OIDC tokens, SSH keys, or authentication tokens during automated provisioning processes.
This rule detects network traffic (DNS, TLS, HTTP, and TCP) originating from internal assets to known infrastructure associated with the QTFY proxy botnet/C2 framework. It identifies communication with specific C2 domains, proxy management systems, and associated malicious IP ranges.
This rule detects network connections and DNS queries associated with the QTFY proxy infrastructure, including specific domains, known proxy management system IPs, and suspicious IP ranges. This behavior is indicative of command and control (C2) activity utilizing proxy services to obfuscate traffic.
This rule detects network connections and DNS queries associated with the QTFY proxy infrastructure, including specific domains, known proxy management system IPs, and suspicious IP ranges. This behavior is indicative of command and control (C2) activity utilizing proxy services to obfuscate traffic.
This rule detects network connections and DNS queries associated with the QTFY proxy infrastructure, including specific domains, known proxy management system IPs, and suspicious IP ranges. This behavior is indicative of command and control (C2) activity utilizing proxy services to obfuscate traffic.
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