Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
503 detections
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Detects network traffic indicating a HEAVYGRAM malware instance communicating with the Telegram Bot API. This is identified by monitoring encrypted TLS traffic to api.telegram.org, which is a common technique used by malware to establish a command-and-control channel using legitimate web services.
Detects network traffic indicating a HEAVYGRAM malware instance communicating with the Telegram Bot API. This is identified by monitoring encrypted TLS traffic to api.telegram.org, which is a common technique used by malware to establish a command-and-control channel using legitimate web services.
Detects network traffic indicating a HEAVYGRAM malware instance communicating with the Telegram Bot API. This is identified by monitoring encrypted TLS traffic to api.telegram.org, which is a common technique used by malware to establish a command-and-control channel using legitimate web services.
Detects outbound network traffic to the Telegram Bot API (api.telegram.org) indicative of long-polling command and control (C2) communication. This behavior is associated with the HEAVYGRAM malware and its use of Telegram as a C2 channel.
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.
Detects periodic outbound network connections from internal hosts to external networks, consistent with command-and-control beaconing behavior often observed in malware like BabylonRAT.
Detects HTTP beaconing activity associated with the Kimsuky threat group (Stella_Gary), specifically identifying requests to the /unicorn/ path. This pattern is characteristic of their C2 communication mechanism, which masquerades as legitimate browsing.
Detects HTTP beaconing activity associated with the Kimsuky threat group (Stella_Gary), specifically identifying requests to the /unicorn/ path. This pattern is characteristic of their C2 communication mechanism, which masquerades as legitimate browsing.
Detects HTTP beaconing activity associated with the Kimsuky threat group (Stella_Gary), specifically identifying requests to the /unicorn/ path. This pattern is characteristic of their C2 communication mechanism, which masquerades as legitimate browsing.
This rule detects outbound TLS connections to suspicious domain names characteristic of the Koktevrat malware's DGA. The rule identifies SNI strings that match a specific regex pattern (8-16 alphanumeric characters followed by .icu or .cfd TLDs), which is indicative of automated C2 communication.
This rule detects outbound TLS connections to suspicious domain names characteristic of the Koktevrat malware's DGA. The rule identifies SNI strings that match a specific regex pattern (8-16 alphanumeric characters followed by .icu or .cfd TLDs), which is indicative of automated C2 communication.
Detects outbound network traffic (TCP and TLS) from internal hosts to known command and control (C2) infrastructure associated with the FamousSparrow threat actor and their SparroWocky malware suite.
Detects outbound network connections (both TCP and TLS) from internal hosts to known command-and-control (C2) infrastructure associated with the SparroWocky malware family. This rule monitors for established connections to a curated list of malicious IP addresses over ports 443 and 8080.
Detects outbound TLS connections from internal hosts to known IP addresses associated with the SparroWocky command-and-control infrastructure, including the specific byte sequence used during the TLS handshake to signal a ready state.
Detects network traffic on TCP port 3308 consistent with VectraRAT beaconing, utilizing MessagePack-over-TCP. The rule monitors for established connections to external networks with specific stream size and content characteristics typical of this C2 communication channel.
Detects network traffic on TCP port 3308 consistent with VectraRAT beaconing, utilizing MessagePack-over-TCP. The rule monitors for established connections to external networks with specific stream size and content characteristics typical of this C2 communication channel.
Detects network traffic on TCP port 3308 consistent with VectraRAT beaconing, utilizing MessagePack-over-TCP. The rule monitors for established connections to external networks with specific stream size and content characteristics typical of this C2 communication channel.
Detects network traffic on TCP port 3308 consistent with VectraRAT beaconing, utilizing MessagePack-over-TCP. The rule monitors for established connections to external networks with specific stream size and content characteristics typical of this C2 communication channel.
Detects network activity associated with the Mantax/Otax Android malware family, specifically identifying C2 communication to the domain apimantax.otax.fun via TLS SNI and HTTP host headers, as well as potential dynamic C2 configuration retrieval via GitHub using the OkHttp client.
This rule detects command-and-control (C2) communication patterns associated with the 'soraki-proxy.workers.dev' domain, a Cloudflare Workers-hosted proxy service. Additionally, it identifies potential malicious mTLS implants by flagging non-standard TLS handshakes that use self-signed or auto-generated certificates missing standard organization (O) fields in the subject DN.
This rule detects command-and-control (C2) communication patterns associated with the 'soraki-proxy.workers.dev' domain, a Cloudflare Workers-hosted proxy service. Additionally, it identifies potential malicious mTLS implants by flagging non-standard TLS handshakes that use self-signed or auto-generated certificates missing standard organization (O) fields in the subject DN.
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