Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Ransomware group exploiting edge devices and managed file transfer software
Loader malware delivering follow-on ransomware payloads
This rule detects successful HTTP requests (status 200, 201, 202) directed towards management interfaces (Redfish, CIMC, OSS APIs) by unauthenticated or anonymous users originating from outside the internal network. The rule calculates a risk level based on the variety and frequency of requested paths, flagging potential unauthorized enumeration or exploitation attempts against server infrastructure.
This rule detects successful HTTP requests (status 200, 201, 202) directed towards management interfaces (Redfish, CIMC, OSS APIs) by unauthenticated or anonymous users originating from outside the internal network. The rule calculates a risk level based on the variety and frequency of requested paths, flagging potential unauthorized enumeration or exploitation attempts against server infrastructure.
This rule detects validly signed executables making HTTP POST connections, which could indicate data exfiltration or command and control (C2) communication by a signed dropper. It correlates network events with image load events to identify processes with valid signatures performing HTTP POST requests.
Detects HTTP POST beaconing behavior to known infrastructure associated with Atlas RAT and ValleyRAT malware, linked to TA4922 campaigns. The rule monitors for repeated connections to specific C2 IP addresses on TCP port 886.
Commodity .NET keylogger and remote access trojan
Clipboard hijacking malware for cryptocurrency address substitution
Commodity .NET keylogger and remote access trojan
Clipboard hijacking malware for cryptocurrency address substitution
Detects anomalous activity consistent with the IronWorm threat actor using compromised CI credentials to perform npm package publishing. The rule identifies a sequence of two events from the same source IP within a 10-minute window: first, an OIDC identity token exchange request at the npm registry, followed by a package publish operation (PUT request). This behavior is characteristic of malicious actors hijacking CI/CD pipelines to inject malicious code into trusted npm packages.
This rule detects command and control (C2) communication associated with the 'easy-day-js' backdoor, which is part of the Mastra npm supply chain attack. It specifically looks for HTTP POST requests to the IP address 23.254.164.123 with a spoofed Internet Explorer 8 User-Agent string.
Detects high-frequency requests (over 30 unique paths within a 5-minute window) to sensitive VPN-related URL paths that result in 403 (Forbidden) or 404 (Not Found) status codes from non-internal IP addresses. This behavior is indicative of an adversary performing directory enumeration or vulnerability scanning on public-facing infrastructure.
Detects high-frequency requests (over 30 unique paths within a 5-minute window) to sensitive VPN-related URL paths that result in 403 (Forbidden) or 404 (Not Found) status codes from non-internal IP addresses. This behavior is indicative of an adversary performing directory enumeration or vulnerability scanning on public-facing infrastructure.
Detects successful (HTTP 200) requests to ServiceNow API endpoints (/api/now/) that lack proper authentication, such as requests by the 'guest' user or requests missing authorization headers or session tokens.
Detects outbound HTTP PUT requests to 'filen.io', which has been associated with command-and-control (C2) communication for the PRISMEX malware used by the threat actor APT28 (also known as Pawn Storm/Fancy Bear).
Detects outbound HTTP POST requests to file.io originating from a Go-based HTTP client, consistent with the GopherWhisper APT C2 or exfiltration activity.
Detects outbound HTTP POST requests containing keywords indicative of credential and data theft associated with VBV Stealer malware, specifically looking for fields related to passwords, cookies, or wallets in the request body.
Detects outbound HTTP POST requests to file.io originating from a Go-based HTTP client, consistent with the GopherWhisper APT C2 or exfiltration activity.
Detects unauthenticated access attempts to the ServiceNow Scripted REST Resource endpoint '/api/now/related_list_edit/create'. This endpoint has been associated with exploitation activity targeting ServiceNow instances, particularly when accessed by the 'Guest' account or with missing session tokens.
Detects outbound HTTP POST requests containing keywords indicative of credential and data theft associated with VBV Stealer malware, specifically looking for fields related to passwords, cookies, or wallets in the request body.
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