Detections

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

5,879 detections

Detects DNS queries, TLS SNI headers, and HTTP host headers associated with identified C2 infrastructure for NetSupport Manager malware, specifically domains themed around 'GTA6'. These indicators are used by attackers for command and control communication.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
003
Hunts network, HTTP, and email-URL telemetry for known ARToken infrastructure (operator backend IPs and phishing/panel domains). Bounded to a 30-day lookback and tiers matches by confidence: domain hits are high-confidence (attacker-registered infrastructure), while IP hits are medium-confidence since the IPs sit on shared DigitalOcean hosting that can be reassigned to unrelated tenants once ARToken's infrastructure is taken down. Empty/unparsed indicator fields are excluded to avoid spurious matches in the HTTP event parsing branch. No known file hashes are associated with this intel.
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Arnold Chan@slaz
Defender - KQL
1 month ago
002
Hunts network, HTTP, and email-URL telemetry for known ARToken infrastructure (operator backend IPs and phishing/panel domains). Bounded to a 30-day lookback and tiers matches by confidence: domain hits are high-confidence (attacker-registered infrastructure), while IP hits are medium-confidence since the IPs sit on shared DigitalOcean hosting that can be reassigned to unrelated tenants once ARToken's infrastructure is taken down. Empty/unparsed indicator fields are excluded to avoid spurious matches in the HTTP event parsing branch. No known file hashes are associated with this intel.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
002
Detects potential ClickFix-style social engineering attacks where a victim is prompted to execute an encoded PowerShell command (often via copy-paste into a terminal). The rule specifically monitors PowerShell processes initiated by shell environments (explorer.exe, cmd.exe, or WindowsTerminal.exe) that execute encoded, hidden scripts to perform multiple suspicious network requests for files (e.g., .zip, .enc, .bin) from non-standard domains.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
003
This rule monitors DeviceNetworkEvents for any outbound network connections to a specific list of known malicious domains. The rule identifies potential command and control (C2) communication by matching remote URLs against a hardcoded set of domains associated with known threats.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
003
This rule monitors DeviceNetworkEvents for any outbound network connections to a specific list of known malicious domains. The rule identifies potential command and control (C2) communication by matching remote URLs against a hardcoded set of domains associated with known threats.
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Arnold Chan@slaz
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Hunters
2 months ago
103
This rule monitors DeviceNetworkEvents for any outbound network connections to a specific list of known malicious domains. The rule identifies potential command and control (C2) communication by matching remote URLs against a hardcoded set of domains associated with known threats.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
003
This rule detects activity associated with the exploitation of PaperCut vulnerabilities. It looks for connections to known malicious IP addresses, the presence of specific credential harvesting tools, reconnaissance commands (whoami, tasklist) executed by the PaperCut application (pc-app.exe), suspicious PowerShell downloads of AnyDesk, and unauthorized access to PaperCut configuration files or log files containing known exploit strings.
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Arnold Chan@slaz
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Hunters
2 months ago
409
Detects HTTP GET requests to a specific URL path containing an image file, which is associated with the delivery of the LausivLoader malware. The rule monitors for external connections to the domain 'yapw.life' requesting a PNG file, a technique often used for steganographic payload delivery.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects network traffic associated with SilkParasite SpiceRAT malware, including direct IP connections, DNS queries for known malicious domains, and corresponding TLS SNI or HTTP Host header metadata indicating command-and-control (C2) activity.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects DNS queries originating from internal hosts to subdomains of 'hoster-kg.com' or 'tdtu.org'. These parent domains are identified as hosting C2 infrastructure for various malware families, including SpiceRAT, NodeEdgeRAT, and NomadRAT, and are likely used to facilitate adversary command and control activities.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
101
Detects HTTP traffic to the Telegram Bot API (/sendPhoto) originating from internal network hosts, which is indicative of potential exfiltration of captured images (e.g., screenshots or webcam captures) to an adversary-controlled Telegram channel.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects network traffic (DNS queries, TLS SNI, and HTTP Host headers) targeting the domain 'expresshost.cloud', which is identified as hosting VPS infrastructure commonly used for scanning and malicious activities.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects outbound RDP-over-TLS traffic directed toward known SilkParasite C2 IP addresses on specific high-numbered ports, or generic RDP-over-TLS patterns on those same non-standard ports, which suggests tunneling or unauthorized remote access.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
This rule detects network upload operations (HTTP POST or similar requests ending in '/upload') to a specific external IP address (2.26.126.50). It specifically monitors for processes other than common web browsers, and filters for connections where significant data volume (greater than 10KB) is transferred or the data size is unknown.
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Ankit Mehta@Secvyn
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Detection & Hunting Community
1 month ago
102
This rule detects potential malware delivery by correlating network visits to known malicious domains used for lure distribution with subsequent large file downloads (.zip files >= 100MB) in typical user download or temporary folders within a short time window. This pattern is characteristic of campaigns leveraging social engineering and file-based evasive techniques (such as padding to bypass static analysis) to distribute malicious payloads.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
002
This rule detects network upload operations (HTTP POST or similar requests ending in '/upload') to a specific external IP address (2.26.126.50). It specifically monitors for processes other than common web browsers, and filters for connections where significant data volume (greater than 10KB) is transferred or the data size is unknown.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
002
This rule monitors endpoint telemetry for occurrences of known malicious file hashes, C2 IP addresses, and C2 domains. It aggregates file creation/modification events, process execution, and network connections to detect activity associated with known malicious entities.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
002
This rule detects potential malicious activity by matching endpoint file events against a known list of malicious file hashes (SHA256, SHA1, MD5) and monitoring for connections to known malicious domains or URLs.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
002
This rule detects activities associated with the AMOS (Atomic macOS Stealer) malware family by monitoring for known malicious file hashes on endpoints and network communication with domains linked to its command-and-control infrastructure.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
003
This rule detects instances where a process associated with a known StealC command-and-control (C2) IP address subsequently spawns a hidden cmd.exe instance. It correlates network connections to known malicious infrastructure with the creation of hidden command shells within the same device session, specifically looking for common parent processes like web browsers or system utilities.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
002
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