Detections

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

5,873 detections

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
22 days ago
106
This rule detects successful network connections to known malicious IP addresses or the domain 'forgitlab.com', which are associated with the Azazel malware threat infrastructure.
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Arnold Chan@slaz
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Detections.ai Community
24 days ago
609
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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Detection & Hunting Community
22 days ago
005
Detects endpoint and network activity matching known Indicators of Compromise (IOCs) associated with BPFDoor, AVERAT, and Rekoobe backdoors based on Rapid7 research. The query checks for specific file hashes, IP addresses, and domain names across process, file, image load, network, and DNS events.
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Arnold Chan@slaz
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Hunters
20 days ago
003
Detects outbound SMTP traffic associated withAVERAT malware, tracking the EHLO sequence, STARTTLS command negotiation, server acceptance, and subsequent custom TLS ClientHello patterns on port 25.
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Arnold Chan@slaz
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Detection & Hunting Community
20 days ago
003
Detects outbound SMTP traffic associated withAVERAT malware, tracking the EHLO sequence, STARTTLS command negotiation, server acceptance, and subsequent custom TLS ClientHello patterns on port 25.
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Arnold Chan@slaz
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Hunters
20 days ago
003
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.
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Arnold Chan@slaz
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Detections.ai Community
22 days ago
105
Detects potential remote shell behavior where a process named libgcrypt establishes an outbound connection on TCP port 9999 and spawns a shell (such as sh, bash, dash, zsh, or ash) within a short time window.
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Arnold Chan@slaz
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Detections.ai Community
22 days ago
005
This rule detects network communication, DNS queries, email interactions, and URL clicks associated with known TA419 threat actor infrastructure. It monitors multiple telemetry sources to identify indicators of compromise (IOCs) such as specific domains, IP addresses, and email addresses.
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Arnold Chan@slaz
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Midnight Slayer
26 days ago
5015
This analytic detects the usage of the Utility osascript on a macOS device initiated a network connection lasting longer than 10 minutes (600 seconds).
Adversaries may abuse osascript and AppleScript shell execution to establish long-lived command-and-control or remote connections.
Splunk Security@SplunkSecurity
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Splunk Security Content
23 days ago
107
Detects outbound network traffic matching XMRig Monero cryptocurrency miner stratum login behavior originating from an internal host.
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Arnold Chan@slaz
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Midnight Slayer
21 days ago
004
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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Midnight Slayer
21 days ago
004
IOC sweep for P7 DarkSword / Coruna: known file hashes, C2/exploit-host IPs, domains and URLs against Defender device file and network events. Tightened to public IPs, connection action types, exact hosts/subdomains and path-qualified URLs; the shared AWS IP is only matched with its C2 port.
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Arnold Chan@slaz
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Detection & Hunting Community
19 days ago
002
IOC sweep for P7 DarkSword / Coruna: known file hashes, C2/exploit-host IPs, domains and URLs against Defender device file and network events. Tightened to public IPs, connection action types, exact hosts/subdomains and path-qualified URLs; the shared AWS IP is only matched with its C2 port.
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Arnold Chan@slaz
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Midnight Slayer
19 days ago
002
IOC sweep for P7 DarkSword / Coruna: known file hashes, C2/exploit-host IPs, domains and URLs against Defender device file and network events. Tightened to public IPs, connection action types, exact hosts/subdomains and path-qualified URLs; the shared AWS IP is only matched with its C2 port.
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Arnold Chan@slaz
Defender - KQL
19 days ago
002
Detects endpoint connections to known DarkSword/Coruna exploit-host and C2 infrastructure. The shared AWS IP is only matched on C2 ports 8881/8882 to reduce collateral hits.
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Arnold Chan@slaz
Defender - KQL
19 days ago
002
Detects devices reaching P7 DarkSword exploit-delivery hosts (cdn/js.gotoiphone.com, mzpo30.cam) and the agdx53.cc C2, with delivery-then-C2 chaining surfaced as the highest-confidence match. Matching is limited to the exact listed hosts and successful/attempted connection events.
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Arnold Chan@slaz
Defender - KQL
19 days ago
002
Detects devices reaching P7 DarkSword exploit-delivery hosts (cdn/js.gotoiphone.com, mzpo30.cam) and the agdx53.cc C2, with delivery-then-C2 chaining surfaced as the highest-confidence match. Matching is limited to the exact listed hosts and successful/attempted connection events.
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Arnold Chan@slaz
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Hunters
19 days ago
002
Sweeps network connection, HTTP/proxy, file, and process telemetry for exact matches against known Cling botnet indicators: dedicated STUN C2/operator IPs, Cling MIPS loader staging URLs, and known Cling sample SHA256 hashes. Tightened to exclude broad domain-level matching on stun.l.google.com (legitimate, ubiquitous Google STUN infrastructure that Cling spoofs/abuses rather than owns) and to match payload-staging hosts only by full URL rather than bare IP, reducing false positives from shared/compromised hosting and unrelated legitimate STUN traffic.
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Arnold Chan@slaz
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Midnight Slayer
25 days ago
4010
Detects network, DNS, email, and URL click events matching known IOC domains associated with AdFection, Candiru, and Discover-Tech threat intelligence reports.
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Arnold Chan@slaz
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Midnight Slayer
15 days ago
000
Sweeps network connection, HTTP/proxy, file, and process telemetry for exact matches against known Cling botnet indicators: dedicated STUN C2/operator IPs, Cling MIPS loader staging URLs, and known Cling sample SHA256 hashes. Tightened to exclude broad domain-level matching on stun.l.google.com (legitimate, ubiquitous Google STUN infrastructure that Cling spoofs/abuses rather than owns) and to match payload-staging hosts only by full URL rather than bare IP, reducing false positives from shared/compromised hosting and unrelated legitimate STUN traffic.
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Arnold Chan@slaz
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Detections.ai Community
25 days ago
209
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