SMTP: .CHM
This signature detects e-mail attachments that have the extension .chm and were sent through SMTP. Because .CHMs (Compiled HTML Help File) files can contain scripts, this can indicate an incoming e-mail virus. Attackers can create malicious scripts, tricking users into executing the files and infecting the system.
Extended Description
The impact on the target system is dependent on the instructions contained in the malicious .chm file.
Short Name
SMTP:EXT:DOT-CHM
Severity
Minor
Recommended
False
Recommended Action
None
Category
SMTP
Keywords
.CHM
Release Date
07/28/2004
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3375
False Positive
Unknown