Detections

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

5,879 detections

Detects network connections to command-and-control infrastructure associated with the JeetBot/Twitch Enhanced Viewer malicious browser extension. The rule triggers on connections to known malicious domains or IPs, as well as specific API endpoints on ambiguous domains that are used for exfiltrating Twitch OAuth tokens.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
002
Detects network connections to known JeetBot infrastructure domains and IP addresses. The rule specifically identifies potential exfiltration of Twitch OAuth tokens via URL parameters or interaction with known token-collection proxy endpoints, which are associated with the JeetBot/Twitch Enhanced Viewer credential harvesting campaign.
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Arnold Chan@slaz
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Hunters
2 months ago
002
Detects network connections originating from browser processes to known JeetBot command and control (C2) infrastructure. The rule identifies suspicious C2 communication and, specifically, attempts at token exfiltration by monitoring for auth tokens in the URL of requests directed to known JeetBot hosts and Twitch-related infrastructure.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
002
Detects network connections to command-and-control infrastructure associated with the JeetBot/Twitch Enhanced Viewer malicious browser extension. The rule triggers on connections to known malicious domains or IPs, as well as specific API endpoints on ambiguous domains that are used for exfiltrating Twitch OAuth tokens.
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Arnold Chan@slaz
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Hunters
2 months ago
002
Detects network connections to command-and-control infrastructure associated with the JeetBot/Twitch Enhanced Viewer malicious browser extension. The rule triggers on connections to known malicious domains or IPs, as well as specific API endpoints on ambiguous domains that are used for exfiltrating Twitch OAuth tokens.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
002
Detects network connections to command-and-control infrastructure associated with the JeetBot/Twitch Enhanced Viewer malicious browser extension. The rule triggers on connections to known malicious domains or IPs, as well as specific API endpoints on ambiguous domains that are used for exfiltrating Twitch OAuth tokens.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
002
Detects network connections to JeetBot/Twitch Enhanced Viewer malicious browser extension infrastructure exfiltrating Twitch OAuth tokens. Apex domains (jeetbot.cc, api.jeetbot.cc) are gated on a token-forwarding indicator to avoid false positives.
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Arnold Chan@slaz
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Hunters
2 months ago
002
Detects a process that has established a connection to the Telegram Bot API subsequently performing a large volume of file deletions across multiple folders within a 15-minute window. This behavior is indicative of a remote-controlled destructive attack, such as the deployment of a wiper malware (e.g., HEAVYGRAM or CHOSEN BRICK) triggered via Telegram C2 commands.
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Arnold Chan@slaz
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Hunters
2 months ago
001
Detects outbound network traffic to the Telegram Bot API characteristic of malware command and control (C2). This rule specifically identifies Python-based requests using the 'python-requests' user agent performing common Telegram API operations (getUpdates, sendDocument, sendPhoto, getFile) typical of C2 frameworks like HEAVYGRAM or CHOSEN BRICK.
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Arnold Chan@slaz
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Hunters
2 months ago
001
This rule monitors for execution of files with specific SHA256 hashes known to be malicious, and network connections to a known malicious domain associated with Vultr storage. It aggregates file creation, process execution, and network connection events to detect potential threat activity.
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Arnold Chan@slaz
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Hunters
2 months ago
001
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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Hunters
2 months ago
001
This rule monitors network traffic for requests directed at a specific domain ('luizestrelhashapr.online') and path ('/google_api/b83fa72d.css'), which is identified in threat intelligence as an indicator of browser history exfiltration.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
001
Detects outbound network communication from common web browsers (chrome.exe, msedge.exe) to a specific malicious domain and path associated with suspected Kremlin-linked screenshot exfiltration activities.
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Arnold Chan@slaz
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Hunters
2 months ago
001
Detects outbound network communication from common web browsers (chrome.exe, msedge.exe) to a specific malicious domain and path associated with suspected Kremlin-linked screenshot exfiltration activities.
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Arnold Chan@slaz
Defender - KQL
2 months ago
001
This rule detects outgoing HTTP requests to 'apimantax.otax.fun' attempting to initiate a WebSocket upgrade connection. This is characteristic of the Mantax Otax v2 malware family establishing a Command and Control (C2) channel.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
005
This rule monitors network connections for specific domains and URL patterns associated with the 'FlowerStorm' campaign. It flags potential phishing attempts by identifying low-prevalence connections to known malicious infrastructure from browser or PDF reader processes.
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Ankit Mehta@Secvyn
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SlimKQL
2 months ago
8012
Detects host-based activity or network communication associated with the SloppyRAT remote access trojan. The rule monitors for specific malicious file hashes and connection attempts to known C2 IP addresses and domains.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
000
This rule monitors HTTP POST requests for patterns indicative of armored malware (specifically StealC) beaconing to a Command and Control (C2) server. The rule looks for established connections that use POST requests while avoiding common patterns found in standard web traffic (like JSON, XML, or standard form data) and having a specific request body size threshold. The thresholding mechanism helps reduce noise by only alerting when multiple occurrences are observed within a short time frame, suggesting automated beaconing behavior.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
000
Detects network indicators associated with 'ClickFix' social engineering campaigns. The rules identify connections to known malicious domains and IP addresses involved in serving fake CAPTCHA prompts or error-resolution instructions, as well as the delivery and subsequent transmission of specific overlay cookies ('cookie-captcha-complete') used in these attacks.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
000
Detects outbound HTTP POST requests to a known StealC malware command-and-control (C2) endpoint. This rule monitors for established TCP connections and HTTP traffic directed towards a specific IP address associated with malicious exfiltration activity.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
000
Detects file hash hits matching known malicious IOCs or network connections to suspicious domains/URLs.
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Arnold Chan@slaz
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Hunters
1 month ago
000
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