SID 1:46942

Rule Category

FILE-OTHER -- Snort detected traffic targeting vulnerabilities in a file type that does not require enough rule coverage to have its own category.

Alert Message

FILE-OTHER Microsoft Windows .lnk shortcut file executing system32 executable attempt

Rule Explanation

This rule looks for LNK files containing links to a Windows executable in the system32 directory.

What To Look For

This rule fires on attempts to download a LNK shortcut file that links to a Windows executable in the system32 directory.

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

Rule Groups

MITRE::ATT&CK Framework::Enterprise::Execution::User Execution::Malicious File

An adversary may rely upon a user opening a malicious file in order to gain execution. Users may be subjected to social engineering to get them to open a file that will lead to code execution. This user action will typically be observed as follow-on behavior from Spearphishing Attachment. Adversaries may use several types of files that require a user to execute them, including .doc, .pdf, .xls, .rtf, .scr, .exe, .lnk, .pif, and .cpl.

CVE

CVE-2018-0978

Additional Links

portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2018-0978

Rule Vulnerability

N/A

Not Applicable

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.

CVE-2018-0978

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