Detections

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

40,045 detections

Detects file events involving NCrypt.exe, which may indicate process execution or file modification related to cryptographic functions or potential masquerading.
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ills3c Intel&Coffee@Ills3C
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Detections.ai Community
21 days ago
000
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
21 days ago
000
Detects the AdFection multi-stage infection chain where a device sequentially contacts advertising infrastructure, Candiru validator servers, exploit servers, and Candiru Command and Control domains within a short time window.
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Arnold Chan@slaz
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Detection & Hunting Community
21 days ago
000
Surfaces Microsoft Defender alerts that reference Candiru/DevilsTongue spyware terms or associated CVEs (such as CVE-2021-31979, CVE-2021-33771, etc.) attributed in threat intelligence reports.
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Arnold Chan@slaz
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Detection & Hunting Community
21 days ago
000
Surfaces Microsoft Defender alerts that reference Candiru/DevilsTongue spyware terms or associated CVEs (such as CVE-2021-31979, CVE-2021-33771, etc.) attributed in threat intelligence reports.
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Arnold Chan@slaz
Defender - KQL
21 days ago
000
Detects the presence of known Candiru Windows DLL implant IOC hashes across device file events, process events, image loads, and email attachments.
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Arnold Chan@slaz
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Hunters
21 days ago
000
Detects the presence of known Candiru Windows DLL implant IOC hashes across device file events, process events, image loads, and email attachments.
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Arnold Chan@slaz
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Midnight Slayer
21 days ago
000
Detects the presence of known Candiru Windows DLL implant IOC hashes across device file events, process events, image loads, and email attachments.
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Arnold Chan@slaz
Defender - KQL
21 days ago
000
Detects the deletion of the Exchange PowerShell cmdlet History logs which may indicate an attempt to destroy forensic evidence
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
24 days ago
001
The following analytic detects the execution of tools commonly exploited by cybercriminals, such as those used for unauthorized access, network scanning, privilege escalation, password dumping or data exfiltration.
It leverages process activity data from Endpoint Detection and Response (EDR) agents, focusing on known attacker tool names.
This activity is significant because it serves as an early warning system for potential security incidents, enabling prompt response. If confirmed malicious, this activity could lead to unauthorized access, data theft, or further network compromise, posing a severe threat to the organization's security infrastructure.
Splunk Security@SplunkSecurity
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Splunk Security Content
1 month ago
1010
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
1 month ago
209
Detects historical network connections, URL clicks, browser launches, email URLs, and process command lines associated with Wazza phishkit infrastructure IOCs including boegl-krysl.eu, coppietersrecherche.eu, and beacon-surge-sync.workers.dev.
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Arnold Chan@slaz
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Midnight Slayer
28 days ago
104
Sweeps endpoint telemetry for known UAC-0099 MATCHBOIL/LONEPAGE indicators: SHA256 hashes, C2 IPs, C2 domains (including subdomains), and payload/C2 URLs. Matches are limited to public outbound connections, Defender self-activity is excluded from file hits, and repeat hits are collapsed to one row per device and indicator. The lists are a subset of the 142 IOCs in the source report.
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Arnold Chan@slaz
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Detection & Hunting Community
28 days ago
104
Detects a behavioral chain where PowerShell stages a hidden base64-encoded command and schedules a VBScript task, or PowerShell fetches an upgrade.txt file via web client methods for execution.
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Arnold Chan@slaz
Defender - KQL
28 days ago
004
Detects PowerShell execution performing port checks across multiple internal hosts using Test-NetConnection in a looping construct with output redirected to a log file, indicative of post-compromise reconnaissance (such as LONEPAGE scanning).
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Arnold Chan@slaz
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Hunters
28 days ago
004
Detects the execution of MATCHBOIL malware variants (PlannerAssistantManager.exe or RegularExpressionExplorer.exe) using specific command-line arguments (-auto, -plans, -renew) which trigger C&C logic.
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Arnold Chan@slaz
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Detections.ai Community
28 days ago
004
Detects a sequential pattern where a browser process (Chrome, Edge, or Safari) accesses an AI chat platform's conversation API, followed within 5 minutes by a network connection to a known unauthorized exfiltration destination (api.pbapi.xyz). This pattern suggests the potential use of a browser-based tool or extension (e.g., Poper Blocker or similar) to intercept and exfiltrate AI chat history.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
5018
Detects PowerShell processes invoked with obfuscated command lines that enumerate Microsoft.PowerShell.Utility
exported commands and invoke cmdlets indirectly by array index. This technique is used to evade
detections that look for explicit strings such as Invoke-RestMethod or Invoke-Expression.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 month ago
007
Detects unauthorized access to sensitive browser credential and session data files (e.g., Login Data, Cookies, Local State, key4.db) by non-browser processes. This behavior is a common indicator of information-stealing malware attempting to extract saved credentials and session cookies to facilitate account takeover and bypass multi-factor authentication.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
40034
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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Midnight Slayer
29 days ago
004
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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Detections.ai Community
29 days ago
104
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