alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Generic Trojan with /? and Indy Library User-Agent"; flow:established,to_server; content:"GET"; nocase; http_method; content:"/?"; depth:2; http_uri; content:"Indy Library)"; http_header; fast_pattern; content:"Accept-Encoding|3a| identity|0D 0A|User-Agent|3a| Mozilla/3.0 (compatible|3b| Indy Library)"; http_header; content:!".ensignsoftware.com"; http_header; classtype:trojan-activity; sid:2012312; rev:6; metadata:created_at 2011_02_14, updated_at 2011_02_14;)

Added 2017-08-07 21:05:26 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Generic Trojan with /? and Indy Library User-Agent"; flow:established,to_server; content:"GET"; nocase; http_method; content:"/?"; depth:2; http_uri; content:"Indy Library)"; http_header; fast_pattern; content:"Accept-Encoding|3a| identity|0D 0A|User-Agent|3a| Mozilla/3.0 (compatible|3b| Indy Library)"; http_header; content:!".ensignsoftware.com"; http_header; classtype:trojan-activity; sid:2012312; rev:6;)

Added 2017-04-28 17:24:32 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Trojan with /? and Indy Library User-Agent"; flow:established,to_server; content:"GET"; nocase; http_method; content:"/?"; depth:2; http_uri; content:"Indy Library)"; http_header; fast_pattern; content:"Accept-Encoding|3a| identity|0D 0A|User-Agent|3a| Mozilla/3.0 (compatible|3b| Indy Library)"; http_header; classtype:trojan-activity; sid:2012312; rev:4;)

Added 2012-03-19 23:39:11 UTC

FP. Legitimate application - Ensign 10 Charting Software http://www.ensignsoftware.com/downloads.php

PCAP in attached file

-- DenisI - 2017-04-28

Thanks, updated!

-- DarienH - 2017-04-28


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Trojan with /? and Indy Library User-Agent"; flow:established,to_server; content:"GET"; http_method; content:"/?"; depth:2; http_uri; content:"Indy Library)"; http_header; fast_pattern; content:"Accept-Encoding|3a| identity|0D 0A|User-Agent|3a| Mozilla/3.0 (compatible|3b| Indy Library)"; http_header; classtype:trojan-activity; sid:2012312; rev:3;)

Added 2012-01-18 18:01:55 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Trojan with /? and Indy Library User-Agent"; flow:established,to_server; content:"GET |2f 3f|"; depth:6; content:"Accept-Encoding|3a| identity|0D 0A|User-Agent|3a| Mozilla/3.0 (compatible|3b| Indy Library)"; http_header; classtype:trojan-activity; sid:2012312; rev:2;)

Added 2011-10-12 19:33:57 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Trojan with /? and Indy Library User-Agent"; flow:established,to_server; content:"GET |2f 3f|"; depth:6; content:"Accept-Encoding|3a| identity|0D 0A|User-Agent|3a| Mozilla/3.0 (compatible|3b| Indy Library)"; http_header; classtype:trojan-activity; sid:2012312; rev:2;)

Added 2011-02-14 02:29:27 UTC


  • ensignsupport.PNG:
    ensignsupport.PNG
Topic revision: r3 - 2017-04-28 - DarienH
 
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