Detections

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

2,594 detections

Detects a malformed PHPSESSID Set-Cookie header indicative of CVE-2026-109618, which may result in stale session ID memory disclosure in PHP applications.
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Brandon Levene@blove
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Detections.ai Community
8 days ago
240157
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.
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Brandon Levene@blove
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Detections.ai Community
8 days ago
530151
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).
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ills3c Intel&Coffee@Ills3C
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Detections.ai Community
8 days ago
1014
Detects suspicious DNS queries to external service interaction domains often used for out-of-band interactions after successful RCE
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
17 days ago
1025
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).
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ills3c Intel&Coffee@Ills3C
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Detections.ai Community
13 days ago
203
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.
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Arnold Chan@slaz
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Detections.ai Community
18 days ago
005
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.
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Arnold Chan@slaz
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Hunters
21 days ago
009
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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Arnold Chan@slaz
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Detections.ai Community
18 days ago
004
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.
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Arnold Chan@slaz
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Hunters
18 days ago
004
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.
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Arnold Chan@slaz
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Detection & Hunting Community
18 days ago
004
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.
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Arnold Chan@slaz
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Detections.ai Community
18 days ago
004
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.
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Arnold Chan@slaz
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Detections.ai Community
21 days ago
007
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.
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Arnold Chan@slaz
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Hunters
18 days ago
003
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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Arnold Chan@slaz
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Detection & Hunting Community
18 days ago
003
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.
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Arnold Chan@slaz
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Midnight Slayer
18 days ago
003
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.
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Arnold Chan@slaz
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Hunters
18 days ago
003
Detects HTTP responses and requests involving exposed Claude Code open directories (.claude/CLAUDE.md) tied to ARTEX operator infrastructure.
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Arnold Chan@slaz
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Detections.ai Community
21 days ago
006
Detects network activity (DNS queries, HTTP Host headers, and TLS SNI) directed towards the known Blinder Tunnel staging domain 'asdfafadafg.online'. This behavior is indicative of command-and-control (C2) communication or initial staging of malicious payloads.
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Arnold Chan@slaz
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Detections.ai Community
22 days ago
008
Detects HTTP, TLS, DNS, and TCP communication with known AhsayCBS campaign infrastructure and Alibaba OSS storage buckets used for payload delivery.
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Arnold Chan@slaz
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Detections.ai Community
20 days ago
005
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.
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Arnold Chan@slaz
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Detections.ai Community
20 days ago
205
Detects DNS lookups, TLS connections, and network traffic associated with the PoeLLM cryptominer communicating with Kryptex mining pools, as well as Stratum mining protocol login attempts.
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Arnold Chan@slaz
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Hunters
21 days ago
106
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