Detections

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

1,605 detections

This rule identifies network traffic to known Command and Control (C2) infrastructure associated with the Katz Stealer malware family. It uses a list of hardcoded IP addresses and domains from threat intelligence to detect suspicious outbound connections.
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R W@shiftyroot
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Detections.ai Community
1 year ago
3152
This detection identifies network traffic to domains known to be used as command and control (C2) infrastructure in recent SharePoint exploitation campaigns. Communication with these domains is a strong indicator of compromise.
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R W@shiftyroot
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Detections.ai Community
1 year ago
1031
This rule detects network connections and DNS queries to known command and control (C2) infrastructure associated with Lumma Stealer malware. It leverages a regularly updated external list of indicators of compromise (IOCs) including IP addresses and domains to identify malicious communication attempts.
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Frederico Canhoto@nullwhire
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Detections.ai Community
1 year ago
93108
The analytic detects the `wermgr.exe` process attempting to connect to known IP check web services. This activity is significant because `wermgr.exe` is typically used for Windows error reporting, and its connection to these services may indicate malicious code injection, often associated with malware like Trickbot. If confirmed malicious, this behavior could allow attackers to recon the infected machine's IP address, aiding in further exploitation and evasion tactics.
Splunk Security@SplunkSecurity
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Splunk Security Content
1 year ago
0031
This rule detects network connections or DNS queries to domains associated with the Tycoon 2FA phishing kit. The rule leverages an external data source containing a list of known malicious domains used by this phishing kit. Detection occurs if a device attempts to connect to or resolve any of these domains.
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Frederico Canhoto@nullwhire
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Detections.ai Community
1 year ago
4281
Detects network connections to domains matching patterns commonly used by the Scattered Spider threat group for phishing campaigns.
The group often registers domains that mimic legitimate corporate services by appending suffixes like "-sso", "-servicedesk", "-okta", "-vpn", or "-helpdesk" to a target's name (e.g., victim-sso.com).
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Aaron Mog@AaronMogS2S
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Detections.ai Community
1 year ago
3279
Detects DNS queries to domains associated with the VexTrio Traffic Distribution System (TDS) and related malicious adtech platforms as detailed in Infoblox research. These platforms are used to redirect users from compromised websites to scams, malware, and other malicious content.
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Michael Francess@MFrancess
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Detections.ai Community
1 year ago
1329
Generic rule content from file: LOLBAS - Execution - Outbound Traffic to Suspicious TLD
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Marcus Mingo@meeengoh
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Tr&de
1 year ago
190154
KQL Query from file: Azure Cloud Security Monitoring
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
141236
KQL Query from file: Sentinel All-In-One IP ThreatHunt
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
162161
KQL Query from file: Sentinel - Threat Hunting DNS Tunneling
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
80161
KQL Query from file: DefenderXDR - Threat Hunting DNS Tunneling
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
141155
KQL Query from file: CVE-2025-33073 Detection
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
4090
KQL Query from file: LDAPNightmare POC Detection
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
2189
KQL Query from file: DefenderXDR Advanced Hunting All-In-One IP Search
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
9087
KQL Query from file: Detecting Mamba 2FA phishing-as-a-service
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
7082
KQL Query from file: Hunting Zloader DNS Tunneling
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
3054
KQL Query from file: Discord Invite Hijacking Detection
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
4052
KQL Query from file: DefenderXDR Weekly OSINT Indicators Scan 12052025
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
4051
KQL Query from file: DefenderXDR Weekly OSINT Indicators Scan 10032025
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
3051
Detects DNS queries for specific subdomains associated with the "Put.io" sharing website. This activity could indicate command and control communication, data exfiltration, or other malicious use by adversaries.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
0046
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