Rule Category

OS-WINDOWS -- Snort has detected traffic targeting vulnerabilities in a Windows-based operating system. This does not include browser traffic or other software on the OS, but attacks against the OS itself.

Alert Message

OS-WINDOWS Microsoft Windows raw WriteAndX InData pointer adjustment attempt

Rule Explanation

This event is generated when an attempt to exploit an SMB connection using exploits seen in the APT3 Bemstour campaign. Impact: Potential Remote Code Execution Details: This alert is triggered when SMB traffic that closely resembles an exploit observed in the APT3 Bemstour campaign. This rule is a generic rule used to detect suspicious activity in the SMB transactions that could indicate an exploit. Ease of Attack: Simple

What To Look For

This rule fires when an attempt to exploit a Windows SMB vulnerability is detected on the network.

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

Rule Groups

No rule groups

CVE

None

Rule Vulnerability

No information provided

CVE Additional Information

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

None

MITRE ATT&CK Framework

Tactic: Initial Access

Technique: Exploit Public-Facing Application

For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org