Stripped Binary Delivered with Debug Info Removed
This rule detects the delivery of a stripped binary, specifically an executable (indicated by 'MZ' header) that has been packed or compressed using UPX (indicated by 'UPX' string). The rule triggers on HTTP traffic flowing to the client, suggesting a download or delivery of such a file. The 'Stripped Binary Delivered with Debug Info Removed' message implies an attempt to evade detection or analysis by removing debugging information, often associated with malware or unwanted applications.
Suricata
