Detections

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

3,651 detections

This rule detects the creation or modification of files associated with the Shai-Hulud 2.0 worm. The detection is based on specific file hashes and a behavioral rule for an unusually large 'bun_environment.js' file, which is a key indicator of the malware's obfuscation techniques.
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Mehulkumar Savajani@Msavajani
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Detections.ai Community
11 months ago
80194
Detects screenshot files being created in temp directories by Node.js processes. OtterCookie captures multi-monitor screenshots and stores them as JPEG files before exfiltration.
Effy Elden@ineffyble
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Detections.ai Community
11 months ago
90151
Detects the creation of files associated with NPM packages compromised in the "Sha1-Hulud: The Second Coming" campaign. This is a broad query intended for hunting and requires manual verification of package versions.
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Pratik .@CyberGator
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Detections.ai Community
11 months ago
822507
Detects process execution patterns associated with the "Sha1-Hulud: The Second Coming" NPM supply chain attack. This includes the silent installation of the 'bun' runtime during an 'npm install' and a destructive file shredding command. The rule filters out legitimate manual installations by developers by checking the initiating parent process.
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Pratik .@CyberGator
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Detections.ai Community
11 months ago
500422
This rule detects the creation or modification of files associated with the Shai-Hulud 2.0 worm. The detection is based on specific file hashes and a behavioral rule for an unusually large 'bun_environment.js' file, which is a key indicator of the malware's obfuscation techniques.
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Mehulkumar Savajani@Msavajani
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Detections.ai Community
11 months ago
1091
Detects creation of suspicious files in /var/tmp consistent with FlexibleFerret malware staging behavior on macOS systems.
Effy Elden@ineffyble
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Detections.ai Community
11 months ago
4073
Detects curl downloading a file, making it executable with chmod, and executing it in the background, common in FlexibleFerret malware delivery on macOS systems.
Effy Elden@ineffyble
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Detections.ai Community
11 months ago
2067
Detects the execution of shell scripts and creation of files associated with the FlexibleFerret macOS malware campaign, which is tied to fake job recruitment lures to trick users into executing malicious commands.
Effy Elden@ineffyble
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Detections.ai Community
11 months ago
1067
Detects curl command downloading payloads to /var/tmp, indicating potential initial delivery stage of FlexibleFerret malware.
Effy Elden@ineffyble
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Detections.ai Community
11 months ago
2064
Detects access to Chrome profile data and Login Data database associated with credential theft activities linked to FlexibleFerret malware on macOS.
Effy Elden@ineffyble
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Detections.ai Community
11 months ago
0061
Detects extraction of FlexibleFerret malware payload archive to the CDrivers directory on macOS systems.
Effy Elden@ineffyble
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Detections.ai Community
11 months ago
1047
Detects creation of FlexibleFerret persistence mechanism via LaunchAgent plist in macOS.
Effy Elden@ineffyble
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Detections.ai Community
11 months ago
1045
Detects Go runtime executing scripts from temporary directories, indicative of FlexibleFerret backdoor.
Effy Elden@ineffyble
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Detections.ai Community
11 months ago
1045
Detects execution of ad-hoc signed applications from suspicious locations, used by FlexibleFerret credential harvesting.
Effy Elden@ineffyble
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Detections.ai Community
11 months ago
0038
Detects creation of .host file in temp directories by FlexibleFerret malware for identifying machines on macOS systems.
Effy Elden@ineffyble
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Detections.ai Community
11 months ago
1036
Detects command line creation or loading of suspicious LaunchAgent plists related to FlexibleFerret malware on macOS.
Effy Elden@ineffyble
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Detections.ai Community
11 months ago
1035
Detects execution of MediaPatcher.app decoy application used for credential harvesting.
Effy Elden@ineffyble
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Detections.ai Community
11 months ago
0032
Detects attempts to use system dialog prompts to capture user credentials
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
11 months ago
000
Detects the creation or modification of .plist files in macOS Launch Agent and Launch Daemon directories. This activity can be indicative of persistence mechanisms being established by adversaries. The rule excludes modifications by common system installers to reduce false positives.
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Benjamin Zulliger@benscha
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Detections.ai Community
1 year ago
385357
RMM Tool Hunting
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Velvizhi Viswalingam@velsecengai
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Detections.ai Community
1 year ago
1467729
This rule detects the creation or modification of files within specific macOS directories associated with LoginWindow hooks and Authorization Plugins. These locations are commonly abused by adversaries to establish persistence or elevate privileges by injecting malicious code that executes during the login process. The rule specifically looks for file events in '/Library/Security/SecurityAgentPlugins/', '/System/Library/CoreServices/SecurityAgentPlugins/', '/Library/Security/SecurityAgentPlugins.bundle', or any file activity within a 'loginwindow' path. It excludes activities initiated by legitimate installers and software updaters to reduce false positives. Additionally, it filters for files with low global prevalence, indicating potentially suspicious or custom binaries.
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Benjamin Zulliger@benscha
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Detections.ai Community
1 year ago
204221
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