Signature Detail
Short Name |
SCAN:MISC:SYN-FIN |
|---|---|
Severity |
Low |
Recommended |
No |
Category |
SCAN |
Release Date |
2003/04/22 |
Update Number |
1213 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
SCAN: Any SYN-FIN Scan
This signature group detects attempts to scan the system for open ports. Attackers can fragment the TCP packet, distributing the TCP header over several packets and making it difficult for packet filters to detect.
Extended Description
Port scanning is often used by hackers to determine which networks they may be able to break into.