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Ankit Mehta

@Secvyn
IndiaTrusted contributorCompletionist
7 followers9,573 downloads10,251 copies160 likes55,624 views

8,655 detections

Detects modifications to Active Directory user accounts by monitoring Security Event ID 4738. The rule filters out service accounts (those ending with '$') and ensures the target username is populated.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
000
This rule detects suspicious WebSocket upgrade attempts targeted at Microsoft authentication endpoints, typically used by 'Bluekit' or similar Phishing-as-a-Service (PhaaS) platforms to establish a persistent connection or tunnel for credential harvesting via adversary-in-the-middle attacks. It flags traffic from non-private IP addresses that exhibit specific patterns associated with proxy usage or automated tooling (e.g., Python/curl) combined with WebSocket upgrade headers.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
000
Detects the use of 'hdiutil' to mount disk images with the '-nobrowse' flag, initiated by common command-line or scripting interpreters. The '-nobrowse' flag prevents the mounted volume from appearing on the desktop or in Finder, which is a common technique used by attackers to mount malicious disk images stealthily to facilitate execution of payloads while avoiding user detection.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
000
This rule monitors DeviceNetworkEvents for outbound network connections to a specific IP address (142.111.194.73), destination port (8640), or URL path (/dj5FZEiLnA/) associated with the 'GiftedCrook' command and control infrastructure.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
000
This rule detects Node.js or Bun processes interacting with sensitive configuration, credential, or authentication files, or executing processes with specific, suspicious command-line markers associated with malicious behavior (e.g., Miasma). This is often indicative of credential theft or discovery activities by an attacker leveraging script interpreters.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
000
This rule detects Node.js or Bun processes interacting with sensitive configuration, credential, or authentication files, or executing processes with specific, suspicious command-line markers associated with malicious behavior (e.g., Miasma). This is often indicative of credential theft or discovery activities by an attacker leveraging script interpreters.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
000
This rule detects potentially malicious software supply chain activity by monitoring for the execution of 'node-gyp' or 'node-pre-gyp' during the installation of Node.js packages (e.g., via npm or yarn). It specifically flags instances where the process or its parent involves suspicious file names or directory paths often associated with 'Miasma' supply chain campaigns, such as references to 'leo-logger', 'binding.gyp', or 'index.js' inside 'node_modules' directories.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
000
This rule monitors DeviceNetworkEvents for outbound network connections to a specific IP address (142.111.194.73), destination port (8640), or URL path (/dj5FZEiLnA/) associated with the 'GiftedCrook' command and control infrastructure.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
000
This rule detects suspicious PowerShell execution patterns involving scripts or payloads stored within specific directory paths (ProgramData\WC3\ or ProgramData\wt1). It flags instances where PowerShell commands include reflective loading techniques ('IEX' or 'Invoke-Expression') while referencing files in these paths, which is often associated with fileless malware execution or malicious loaders.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
000
This rule detects the creation of shortcut (.lnk) files within the Windows Startup folder initiated by potentially suspicious processes such as WinRAR, unrar, or PowerShell. This behavior is indicative of an attempt to achieve persistence by ensuring the execution of a malicious file upon user login.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
000
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