Signature Detail
Short Name |
HTTP:STC:SCRIPT:REPLACE-OBSF |
|---|---|
Severity |
Medium |
Recommended |
No |
Recommended Action |
Drop |
Category |
HTTP |
Keywords |
Javascript Replace Function Unicode Obfuscation |
Release Date |
2010/05/03 |
Update Number |
1672 |
Supported Platforms |
idp-4.0+, isg-3.1.134269+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
HTTP: Javascript Replace Function Unicode Obfuscation
This signature detects the use of the Javascript Replace function as a method of creating obfuscated Web-pages to avoid content inspection/filtering systems. Such scripts are commonly used by malware to avoid IPS detection, but can also be used by ad-ware for similar reasons.
References