WORM: Nimda Infection Attempt (5)
This signature detects attempts to infect a Microsoft IIS Web server with the Nimda worm. Nimda can infect other Web servers by obtaining e-mail addresses and sending a copy of itself in infected messages using its own SMTP or POP3 server; adding files to a system configured to allow Windows file shares; or posting an infected HTML e-mail to the Web server where it can be accessed through HTTP.
Extended Description
Nimda installs a backdoor, allowing infected machines to be controlled by a remote attacker.
Short Name
WORM:NIMDA:SCRIPTS-C11C-CMD
Severity
Minor
Recommended
False
Recommended Action
None
Category
WORM
Keywords
(5) Attempt CVE-1999-0660 Infection Nimda
Release Date
04/22/2003
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
CVSS Score
8.8