Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
1 detection
Filters
Last updated
All Time
Detection languages
1
Contributors
1
Categories
1
1
1
Platforms
1
1
Products / Services
1
1
1
MITRE Techniques
18,123
15,639
12,581
8,394
6,215
IDS Classtypes
1
IDS Protocols
1
This rule detects attempts to downgrade network device firmware via SSH by looking for the string "boot system flash" in TCP traffic directed to port 22 (SSH). This command is commonly used on Cisco IOS devices to specify the system image to boot from, and its presence in an SSH session could indicate an attempt to revert to an older, potentially vulnerable firmware version or to a malicious image.
