Detections

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

3,989 detections

Detects ShadowSniff info-stealer based on strings, PDB path, and behavioral indicators.
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Subhankar H@Shubho57
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Detections.ai Community
7 months ago
1049
This rule detects unusual network connections from processes to legitimate service endpoints that are commonly abused for Command and Control (C2) activities (LOLC2). It specifically looks for connections to services like Telegram, Slack, Discord, GitHub, Google APIs, Pastebin, Dropbox, and others, originating from processes that are not recognized as legitimate applications for those services, and not from common system processes or standard program file paths. This helps identify potential adversary communication channels masquerading as legitimate traffic.
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F S@Fsdr
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Detections.ai Community
7 months ago
80136
Detects outbound network connections to the known typosquatted C2 domain (`scan.aquasecurtiy.org`) or associated IP address (`45.148.10.212`) used by the TeamPCP threat actor. This infrastructure was utilized during the Trivy supply chain attack for exfiltrating stolen SSH keys, cloud credentials, and CI/CD secrets.
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Elgonad .@elgonad
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Detections.ai Community
7 months ago
50101
Detects network communication to known MicroStealer C2 domains or Discord webhook activity with a 'MicroStealer/1.0' user agent. This rule identifies potential MicroStealer malware activity within the network.
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Lacey Cochrane@NullVectorX
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XQL Threat Forge
8 months ago
280423
Detects network traffic matching the specific URI structure used by LeakNet for command-and-control beaconing. This behavior has been consistently observed across multiple LeakNet incidents following initial access.
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Elgonad .@elgonad
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Detections.ai Community
8 months ago
3061
Detects network traffic to known VOID#GEIST C2 domains hosted on TryCloudflare, or the specific command-line execution of `curl.exe` used to send a 'status=success' beacon. This activity confirms a successful compromise by the malware.
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Brandon Rodriguez@BMRodriguez
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Federal Signal Detections
8 months ago
9091
This detection identifies network requests matching a URL pattern used by the Coruna iOS exploit kit to deliver encrypted binary payloads. The framework generates resource URLs using a 40-character hash and serves them as files ending in ".min.js".
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Brandon Rodriguez@BMRodriguez
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Federal Signal Detections
8 months ago
6098
This rule detects network connections to a predefined list of known Microstealer malicious domains. These domains are often associated with malware command and control (C2) infrastructure, phishing, or other malicious activities. Monitoring connections to such domains can help identify compromised systems or active malware infections.
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Ankit Mehta@Secvyn
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Detections.ai Community
8 months ago
160165
Detects network connections to known LLM/AI API endpoints from processes that are not standard web browsers. This is indicative of the LAMEHUG malware used by APT28, which leverages these APIs to dynamically generate and execute commands.
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Salten Fisk@saltenfisk
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Detections.ai Community
8 months ago
160193
Detects network connections to domains identified as being part of the DarkSword iOS exploit kit delivery or command-and-control infrastructure. The DarkSword exploit kit is actively being used by multiple threat actors (UNC6353, UNC6748, PARS Defense) to target iOS users.
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Elgonad .@elgonad
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Detections.ai Community
8 months ago
1053
Detects HTTP/HTTPS traffic where the User-Agent string is explicitly set to 'MicroStealer/1.0', which is used by the malware when communicating with Discord webhooks or its C2.
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Tim Peck@timpeck
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Detections.ai Community
8 months ago
110148
This rule detects network connections to specific IP addresses and ports (1259, 1269) via UDP, or the presence of a file with a specific SHA256 hash. This combination could indicate command and control (C2) communication or data exfiltration using a custom UDP protocol.
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Ankit Mehta@Secvyn
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Detections.ai Community
8 months ago
7073
Detects C2 communication from Boggy Serpens (MuddyWater) backdoors like Nuso and BlackBeard, which use non-standard HTTP status codes (201, 202, 418) to receive commands from known C2 servers.
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Elgonad .@elgonad
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Detections.ai Community
8 months ago
2086
This rule detects the presence of Phoenix malware by identifying known SHA256 hashes of its components or network connections to its command and control (C2) infrastructure. It correlates file events with known malware hashes and network events with known C2 IP addresses.
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Ankit Mehta@Secvyn
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Detections.ai Community
8 months ago
8051
Detects network communication to known APT36 Havoc C2 infrastructure IP addresses
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Georg Lauenstein@gsec
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SecOps Signals
8 months ago
10108
Detects the C2 communication of the Slopoly PowerShell backdoor, used by the Hive0163 group. It looks for specific HTTP POST requests containing a JSON body with characteristic keys.
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Elgonad .@elgonad
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Detections.ai Community
8 months ago
2076
This query detects multiple TTPs associated with the Storm-2561 campaign that uses SEO poisoning to distribute fake VPN clients for credential theft. It looks for known file hashes, a specific code-signing certificate, malicious DLL side-loading and C2 communication patterns.
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Ankit Mehta@Secvyn
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Detections.ai Community
8 months ago
130175
This rule detects the creation of Amazon SNS (Simple Notification Service) subscriptions that are configured to send notifications to external HTTP or HTTPS endpoints. It specifically looks for `Subscribe` events from the `sns.amazonaws.com` service where the `protocol` is either `http` or `https` and the `endpoint` does not belong to Amazon's own domains (amazon.com, awsapps.com, amazonaws.com). This could indicate data exfiltration or misconfiguration where sensitive information might be sent to an unapproved external service.
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Lacey Cochrane@NullVectorX
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XQL Threat Forge
8 months ago
3067
This rule detects network traffic containing specific User-Agent strings used by the BurrowShell implant and the Rust-based keylogger to masquerade as legitimate Windows Update or browser traffic. These User-Agent strings are 'Windows-Update-Agent/10.0.10011.Client-Protocol/2.50' and 'Mozilla/5.0 (compatible; SecureNet/1.2)'.
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Brandon Rodriguez@BMRodriguez
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Federal Signal Detections
8 months ago
80115
Detects outbound network traffic to Icedrive domains from non-browser and non-Icedrive client processes, which could indicate C2 communication by the BeardShell implant used by Sednit (APT28).
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Elgonad .@elgonad
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Detections.ai Community
8 months ago
1027
Detects outbound network traffic to Filen domains from non-browser and non-Filen client processes, which could indicate C2 communication by Sednit's modified Covenant implant.
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Elgonad .@elgonad
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Detections.ai Community
8 months ago
0025
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