Detections

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

408 detections

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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Hunters
1 month ago
000
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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Midnight Slayer
1 month ago
000
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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Detection & Hunting Community
1 month ago
000
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.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
000
Detects outbound TLS and HTTP traffic directed towards 'testing.perplexity.com', an unlocked test subdomain reportedly associated with the BragJack campaign for AI agent hijacking. This indicates potential interaction with an adversary-controlled or compromised infrastructure used to intercept or manipulate AI agent sessions.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
000
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.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
000
Detects network communication associated with Mantax Otax Android malware, including traffic to identified command-and-control (C2) infrastructure and attempts to retrieve dynamic configuration files from GitHub.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
003
Detects network traffic (TLS SNI or HTTP Host) to Firebase domains (firebaseio.com, firebaseapp.com, firebasedatabase.app) associated with Mantax Otax and other Android ransomware families for ransom negotiation chat channels.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
003
Detects network traffic (TLS SNI or HTTP Host) to Firebase domains (firebaseio.com, firebaseapp.com, firebasedatabase.app) associated with Mantax Otax and other Android ransomware families for ransom negotiation chat channels.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
003
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.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
003
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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Arnold Chan@slaz
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Midnight Slayer
2 months ago
102
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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Arnold Chan@slaz
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Detections.ai Community
2 months ago
002
Detects anomalous network traffic patterns where internal assets interact with Microsoft Graph API and Entra ID (login.microsoftonline.com) authentication endpoints from distinct external destination IPs within a short time window. This behavior is indicative of potential attacker infrastructure rotation during C2 or post-authentication phases.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
000
This rule monitors TLS traffic for a specific combination of certificate issuer Common Name (CN) matching 'YE1' and Server Name Indication (SNI) hostnames using known disposable or high-risk top-level domains (TLDs). This behavior is associated with the IronToll campaign, often indicative of command-and-control communication or malicious infrastructure staging.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
002
Detects periodic heartbeat beaconing activity to the domain 'tt.yeyoujs.com' over both encrypted TLS (SNI observation on port 9443) and DNS queries. This pattern is indicative of a command-and-control (C2) channel establishing or maintaining persistence.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
005
Detects outbound network traffic (HTTPS and TLS) directed at the specific S3-compatible object storage host 'ams1.vultrobjects.com'. This pattern is associated with 'HEAVYGRAM', a threat actor or toolkit using Vultr S3 buckets for potential data exfiltration.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
000
Detects network activity (DNS lookups, TLS SNI, and HTTP Host headers) associated with proxy infrastructure (iproyal.com and lightningproxies.net) known to be used by the HEAVYGRAM/CHOSEN BRICK threat actors to mask Telegram-based command and control traffic.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
000
Detects network activity (DNS lookups, TLS SNI, and HTTP Host headers) associated with proxy infrastructure (iproyal.com and lightningproxies.net) known to be used by the HEAVYGRAM/CHOSEN BRICK threat actors to mask Telegram-based command and control traffic.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
000
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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Midnight Slayer
1 month ago
000
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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Detection & Hunting Community
1 month ago
000
Detects network communication associated with Mantax Otax Android malware, including traffic to identified command-and-control (C2) infrastructure and attempts to retrieve dynamic configuration files from GitHub.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
002
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