mandiant / sunburst_countermeasures

BSD 2-Clause "Simplified" License
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Mistake in snort rule files (matching "T " instead of "GET ") #37

Open cookiengineer opened 3 years ago

cookiengineer commented 3 years ago

All snort rules I've taken a look so far use a wrong first match for content:"T "; offset:2; depth:3; that is separately matched to the actual "GET /..." URLs.

A simple "GET /swip/Events" would suffice (as even the HTTP/1 suffix is unnecessary, actually). Depending on the final rule parser and software, some IDS might cause false positive alerts because of this.