Detections

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

5,879 detections

Detects host-based activity or network communication associated with the SloppyRAT remote access trojan. The rule monitors for specific malicious file hashes and connection attempts to known C2 IP addresses and domains.
avatar
Arnold Chan@slaz
Defender - KQL
1 month ago
001
Detects the execution of known command-line utilities (cmd, powershell, mshta, wscript) spawned by explorer.exe that utilize external network request tools (curl, finger) to initiate network connections. This pattern is commonly observed in stage-1 downloader behavior where a user-initiated action from explorer triggers an attempt to pull down external payloads.
avatar
Arnold Chan@slaz
avatar
Hunters
1 month ago
101
Detects the execution of known command-line utilities (cmd, powershell, mshta, wscript) spawned by explorer.exe that utilize external network request tools (curl, finger) to initiate network connections. This pattern is commonly observed in stage-1 downloader behavior where a user-initiated action from explorer triggers an attempt to pull down external payloads.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
1 month ago
001
Detects the execution of known command-line utilities (cmd, powershell, mshta, wscript) spawned by explorer.exe that utilize external network request tools (curl, finger) to initiate network connections. This pattern is commonly observed in stage-1 downloader behavior where a user-initiated action from explorer triggers an attempt to pull down external payloads.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
1 month ago
001
Detects the execution of known command-line utilities (cmd, powershell, mshta, wscript) spawned by explorer.exe that utilize external network request tools (curl, finger) to initiate network connections. This pattern is commonly observed in stage-1 downloader behavior where a user-initiated action from explorer triggers an attempt to pull down external payloads.
avatar
Arnold Chan@slaz
Defender - KQL
1 month ago
001
Detects the execution of known command-line utilities (cmd, powershell, mshta, wscript) spawned by explorer.exe that utilize external network request tools (curl, finger) to initiate network connections. This pattern is commonly observed in stage-1 downloader behavior where a user-initiated action from explorer triggers an attempt to pull down external payloads.
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
1 month ago
201
Detects network activity associated with the 'ClickFix' campaign, specifically targeting the domain 'mnl.ac' and its associated infrastructure (IPs 149.255.35.135 and 45.74.7.27). The rules monitor for DNS queries, HTTP requests to fetch configuration files (configuration.ps1), and general outbound TCP connections that characterize the staging phase of the ClickFix PowerShell execution chain.
avatar
Ibrahim Saud@tektrix
avatar
Detections.ai Community
1 month ago
101
Detects file hash hits matching known malicious IOCs or network connections to suspicious domains/URLs.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
1 month ago
101
Detects file hash hits matching known malicious IOCs or network connections to suspicious domains/URLs.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
1 month ago
001
Detects file hash hits matching known malicious IOCs or network connections to suspicious domains/URLs.
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
1 month ago
001
Detects anomalous data exfiltration activity to Dropbox API, specifically utilizing a naming convention in the file path ('_lns/') often associated with Kimsuky threat actor tools. The rule monitors HTTP POST requests to content.dropboxapi.com with characteristic 'Dropbox-API-Arg' header values and TLS SNI indicators.
avatar
Ibrahim Saud@tektrix
avatar
Detections.ai Community
1 month ago
000
Detects network traffic patterns associated with the Kimsuky threat group utilizing raw.githubusercontent.com as a dead-drop resolver. The rule specifically identifies the retrieval of configuration files (.ini) and victim-specific data files (.dat) containing MachineGuid identifiers, which are characteristic of Kimsuky's command and control (C2) operations.
avatar
Ibrahim Saud@tektrix
avatar
Detections.ai Community
1 month ago
000
This rule monitors endpoint telemetry for occurrences of known malicious file hashes, C2 IP addresses, and C2 domains. It aggregates file creation/modification events, process execution, and network connections to detect activity associated with known malicious entities.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
1 month ago
001
This rule monitors endpoint telemetry for occurrences of known malicious file hashes, C2 IP addresses, and C2 domains. It aggregates file creation/modification events, process execution, and network connections to detect activity associated with known malicious entities.
avatar
Arnold Chan@slaz
Defender - KQL
1 month ago
001
This rule detects potential malicious activity by matching endpoint file events against a known list of malicious file hashes (SHA256, SHA1, MD5) and monitoring for connections to known malicious domains or URLs.
avatar
Arnold Chan@slaz
avatar
Hunters
1 month ago
001
This rule monitors for outbound network connections to domains and IP addresses associated with known phishing, loader, and C2 infrastructure, including specific ClickFix patterns.
avatar
Ankit Mehta@Secvyn
avatar
SlimKQL
2 months ago
18028
Detects network indicators associated with the StealC information stealer, including DNS lookups for identified C2 domains, HTTPS traffic to known C2 endpoints, and suspicious POST requests using multipart/form-data indicative of credential or session data exfiltration.
avatar
Arnold Chan@slaz
avatar
Hunters
1 month ago
001
Detects network indicators associated with the StealC information stealer, including DNS lookups for identified C2 domains, HTTPS traffic to known C2 endpoints, and suspicious POST requests using multipart/form-data indicative of credential or session data exfiltration.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
1 month ago
001
Detects network indicators associated with the StealC information stealer, including DNS lookups for identified C2 domains, HTTPS traffic to known C2 endpoints, and suspicious POST requests using multipart/form-data indicative of credential or session data exfiltration.
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
1 month ago
001
Detects network activity associated with the 'ClickFix' campaign, specifically targeting the cdnsuicaches[.]com domain. The rules identify the initial DNS query, the subsequent TLS SNI connection, and the retrieval of malicious JavaScript containing the 'cookie-captcha-complete' overlay signature. This behavior is indicative of a browser-based social engineering attack.
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
1 month ago
001
Detects outbound network connections from internal devices to a set of known malicious IP addresses (45.151.45.31 and 46.166.79.31) which may indicate command and control communication or other malicious activity.
avatar
Ankit Mehta@Secvyn
Defender - KQL
1 month ago
001
Page 110 of 280