HTTP: Unusual Value In HTTP Referer Header
This signature detects unusual values for the "Referer" field in an HTTP request. Some malware will hard-code illegal or unusual values in their requests to Command & Control servers, while others will use such headers in their HTTP DDoS requests to victims. The source IP may be infected with a bot and should be investigated.
References
Short Name
HTTP:UNUSUAL-REFERER
Severity
Minor
Recommended
False
Recommended Action
Drop
Category
HTTP
Keywords
HTTP Header In Referer Unusual Value
Release Date
07/14/2014
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
3324
False Positive
Unknown