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Tim Peck

@timpeck
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916 detections

Detects suspicious email inbox rule creation indicative of account compromise. Focuses on rules with randomly-generated names or rules that move emails to low-visibility folders combined with hiding actions (mark as read, delete, stop processing).
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Tim Peck@timpeck
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Detections.ai Community
10 months ago
91200
Detects the execution of a batch file from a common user directory (e.g., Downloads, Desktop) that immediately launches an executable file. This pattern was observed in a Webrat malware campaign where a `start_exp.bat` file was used to launch the primary malicious payload, `rasmanesc.exe`, tricking users into running it after extracting a fake exploit archive.
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Tim Peck@timpeck
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Detections.ai Community
10 months ago
180196
Detects the DLL sideloading technique used by the Evasive Panda APT group, where the legitimate and signed 'evteng.exe' executable is used to load the malicious 'libpython2.4.dll'.
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Tim Peck@timpeck
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Detections.ai Community
10 months ago
91116
Detects the use of attrib.exe to set system (+s) and hidden (+h) attributes on an executable file in a suspicious folder. This technique was observed being used by threat actors to hide payloads like SparkRAT.
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Tim Peck@timpeck
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Detections.ai Community
10 months ago
30128
Detects the loading of a vulnerable version of WindowsCodecs.dll (related to CVE-2025-50165) by non-standard applications. This could indicate an attempt to exploit the vulnerability in a custom or unexpected application context.
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Tim Peck@timpeck
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Detections.ai Community
10 months ago
60121
Detects the DriverFixer0428 macOS credential stealer, attributed to the North Korean 'Contagious Interview' campaign. This rule identifies the malware based on unique internal strings, network IOCs related to Dropbox exfiltration, and social engineering text.
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Tim Peck@timpeck
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Detections.ai Community
10 months ago
40106
Detects the creation of a Windows service named "NSecRTS" with the display name "Windows Real-time Protection Service" and an executable path in a suspicious "NSEC" folder. This behavior is associated with a China-linked RAT observed in an Indian Income Tax-themed phishing campaign.
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Tim Peck@timpeck
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Detections.ai Community
10 months ago
80136
Detects a specific DLL side-loading pattern used by APT37 in the 'Operation Artemis' campaign. A legitimate Sysinternals utility (e.g., 'mhelp.exe', 'vhelp.exe', 'Volumeid1.exe') is executed from a suspicious directory and loads a malicious 'version.dll' from the same path.
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Tim Peck@timpeck
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Detections.ai Community
10 months ago
40112
Detects the creation of systemd services used by the PCPcat malware for persistence on Linux systems.
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Tim Peck@timpeck
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Detections.ai Community
10 months ago
40106
Detects successful Microsoft 365 sign-ins using the OAuth 2.0 device code grant flow for applications with low prevalence. This technique is used by threat actors to gain unauthorized access to accounts, bypassing some MFA controls.
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Tim Peck@timpeck
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Detections.ai Community
10 months ago
123287
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