Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects a malformed PHPSESSID Set-Cookie header indicative of CVE-2026-109618, which may result in stale session ID memory disclosure in PHP applications.
Detects HTTP POST requests containing multipart/form-data with PHP_SESSION_UPLOAD_PROGRESS, which is associated with CVE-2026-109618 and CVE-2026-109619 exploitation attempts, tracked via a detection filter.
Detects HTTP requests containing serialized PHP objects in the Cookie header matching patterns associated with Zend Framework or Laminas gadget chains, characteristic of PHP object deserialization exploitation (e.g., PHPGGC style).
Detects HTTP requests targeting Microsoft Exchange servers that combine the autodiscover.json URI with PowerShell endpoint parameters, indicative of ProxyNotShell vulnerabilities exploitation (CVE-2022-41040 and CVE-2022-41082).
Detects the Mir0Auth phishing kit sequence within a single HTTP flow: POST /task_queue.cs beacon followed by POST /context.go device-code request, both with application/octet-stream bodies. Requires both requests (flowbits) and exact path endings to limit false positives. SIDs made unique.
Detects connections from internal hosts to the ARTEX-linked actor host 38.244.50.120, including requests for the exposed .claude/CLAUDE.md file and its open-directory port 18899.
Detects connections from internal hosts to the ARTEX-linked actor host 38.244.50.120, including requests for the exposed .claude/CLAUDE.md file and its open-directory port 18899.
Detects the Mir0Auth phishing kit sequence within a single HTTP flow: POST /task_queue.cs beacon followed by POST /context.go device-code request, both with application/octet-stream bodies. Requires both requests (flowbits) and exact path endings to limit false positives. SIDs made unique.
Detects repeated octet-stream POST polling of /window.rs (5+ in 20s, alerting once per window), matching the ~3s Mir0Auth session polling while the victim completes device login. SID de-duplicated from another rule.
Detects bursts (3+ in 60s) of octet-stream POSTs to URI paths ending in .cs/.go/.rs, matching Mir0Auth XOR-obfuscated C2. Path must be a single short segment and the threshold is raised to cut noise from dev/API traffic.
Detects bursts (3+ in 60s) of octet-stream POSTs to URI paths ending in .cs/.go/.rs, matching Mir0Auth XOR-obfuscated C2. Path must be a single short segment and the threshold is raised to cut noise from dev/API traffic.
Detects bursts (3+ in 60s) of octet-stream POSTs to URI paths ending in .cs/.go/.rs, matching Mir0Auth XOR-obfuscated C2. Path must be a single short segment and the threshold is raised to cut noise from dev/API traffic.
Detects P7 DarkSword implant C2 beaconing: HTTP/1.0 JSON POSTs to /beacon, /event or /a with the hardcoded iPhone OS 18_5 Safari 18.5 User-Agent. Requires the full combination of protocol version, method, URI, UA and content type, and alerts only after 3 matching requests from one source within 120 seconds (detection_filter) to suppress one-off matches.
Detects HTTP responses and requests involving exposed Claude Code open directories (.claude/CLAUDE.md) tied to ARTEX operator infrastructure.
Detects HTTP, TLS, DNS, and TCP communication with known AhsayCBS campaign infrastructure and Alibaba OSS storage buckets used for payload delivery.
Detects an unauthenticated remote code execution attempt against AhsayCBS via the UpdateReceivers.do endpoint using the checkSysPwd parameter, associated with CVE-2026-105133 and CVE-2026-105134.
Detects connections from internal hosts to the ARTEX-linked actor host 38.244.50.120, including requests for the exposed .claude/CLAUDE.md file and its open-directory port 18899.
Detects HTTP responses and TLS client connections associated with Adobe-themed device code phishing lure pages hosted on workers.dev, utilizing specific patterns and keywords such as 'Confirm to open document', 'VERIFICATION CODE', and long hyphenated domain structures.
Detects an exploitation attempt against PoeLLM or LiteLLM MCP test/connection endpoint using a python3 stdio payload that fetches data from port 81.
Detects HTTP, TLS, DNS, and TCP communication with known AhsayCBS campaign infrastructure and Alibaba OSS storage buckets used for payload delivery.
Detects repeated octet-stream POST polling of /window.rs (5+ in 20s, alerting once per window), matching the ~3s Mir0Auth session polling while the victim completes device login. SID de-duplicated from another rule.
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