SID 1:61877

Rule Category

MALWARE-BACKDOOR -- Snort has detected suspicious communication traffic unrelated to commands, such as exfiltration of data from the infected machine, especially larger chunks of data.

Alert Message

MALWARE-BACKDOOR Asp.Backdoor.MoveITShell connection attempt

Rule Explanation

This rule looks for webshell client connection attempts that are associated with the MOVEit vulnerability from June, 2023.

What To Look For

THis rule is triggered when an attacker attempts to connect to a webshell.

Known Usage

Attacks/Scans seen in the wild

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group