alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (Collection Info)"; flow:established,to_server; http.user_agent; content:"Collection Info/1.0"; bsize:19; fast_pattern; reference:md5,864eace6e6f67b77163d7ed5da4498c8; reference:url,github.com/AmnestyTech/investigations/tree/master/2021-02-24_vietnam; reference:url,www.amnesty.org/en/latest/research/2021/02/click-and-bait-vietnamese-human-rights-defenders-targeted-with-spyware-attacks/; classtype:bad-unknown; sid:2031684; rev:1; metadata:created_at 2021_03_01, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_03_01;)