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F S

@Fsdr
Trusted contributorCompletionist
10 followers126 downloads2,750 copies132 likes25,410 views

147 detections

This rule detects unusual network connections from processes to legitimate service endpoints that are commonly abused for Command and Control (C2) activities (LOLC2). It specifically looks for connections to services like Telegram, Slack, Discord, GitHub, Google APIs, Pastebin, Dropbox, and others, originating from processes that are not recognized as legitimate applications for those services, and not from common system processes or standard program file paths. This helps identify potential adversary communication channels masquerading as legitimate traffic.
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F S@Fsdr
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Detection & Hunting Community
7 months ago
230224
This rule detects unusual network connections from processes to legitimate service endpoints that are commonly abused for Command and Control (C2) activities (LOLC2). It specifically looks for connections to services like Telegram, Slack, Discord, GitHub, Google APIs, Pastebin, Dropbox, and others, originating from processes that are not recognized as legitimate applications for those services, and not from common system processes or standard program file paths. This helps identify potential adversary communication channels masquerading as legitimate traffic.
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F S@Fsdr
Defender - KQL
7 months ago
150205
This rule detects unusual network connections from processes to legitimate service endpoints that are commonly abused for Command and Control (C2) activities (LOLC2). It specifically looks for connections to services like Telegram, Slack, Discord, GitHub, Google APIs, Pastebin, Dropbox, and others, originating from processes that are not recognized as legitimate applications for those services, and not from common system processes or standard program file paths. This helps identify potential adversary communication channels masquerading as legitimate traffic.
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F S@Fsdr
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Detections.ai Community
7 months ago
80136
This rule detects anomalous child processes spawned by mmc.exe. It specifically looks for processes initiated by mmc.exe that are not located in expected system directories or common program file paths, indicating potential abuse of the Microsoft Management Console for malicious execution.
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F S@Fsdr
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Detections.ai Community
7 months ago
8069
KQL Query
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F S@Fsdr
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Detections.ai Community
7 months ago
4063
Detects the creation of DLL files in the `C:\Windows\System32` or `C:\Windows\SysWOW64` directories by processes that are not themselves located in these system directories. This behavior can indicate DLL planting, a technique used for persistence, privilege escalation, or defense evasion, often associated with DLL search order hijacking or side-loading. The rule excludes known legitimate activities such as printer driver installations and specific noisy legitimate software processes.
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F S@Fsdr
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Detections.ai Community
7 months ago
160166
Detects the execution of 'SecurityHealthSetup.exe' from non-standard or suspicious directories such as 'Intel', 'Downloads', or 'Temp'. This executable is typically associated with Windows Security Health and should reside in system directories. Execution from other locations may indicate an attempt to masquerade malicious activity or defense evasion.
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F S@Fsdr
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Detections.ai Community
7 months ago
7051
KQL Query
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F S@Fsdr
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Detections.ai Community
8 months ago
330275
Detects successful sign-ins to the Microsoft Intune Company Portal (AppId '9ba1a5c7-f17a-4de9-a1f1-6178c8d51223') where Conditional Access Policies (CAP) have failed. This indicates an attempt to bypass device compliance requirements, potentially allowing access from non-compliant or unmanaged devices.
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F S@Fsdr
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Detections.ai Community
8 months ago
390410
This rule detects processes where an executable file (.exe) attempts to masquerade as a common document, image, or archive file type by including extensions like .pdf, .doc, .zip, .jpg, etc., within its filename, followed by the .exe extension. It specifically excludes executables originating from Microsoft Office root directories to reduce false positives.
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F S@Fsdr
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Detections.ai Community
8 months ago
250159
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