1. Symantec/
  2. Security Response/
  3. Attack Signatures/
  4. Attack: SMB Sniffer Negotiate Protocol Challenge Key 2

Attack: SMB Sniffer Negotiate Protocol Challenge Key 2

Severity: High

This attack could pose a serious security threat. You should take immediate action to stop any damage or prevent further damage from happening.

Description

This signature detects attempts to sniff SMB usernames and passwords through a known challenge key which can then be used to crack the passwords offline.

Additional Information

The SMB sniffer module allows you to capture LM/NTLM hashes that can be cracked later. It uses a known challenge key which allows you to crack the hash offline.

Affected

  • SMB
  • Twitter
  • Facebook
  • LinkedIn
  • Google+
  • YouTube