#alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Suspicious IAT GetComputerName?"; flow:established,to_client; content:"MZ"; isdataat:76,relative; content:"This program cannot be run in DOS mode."; distance:0; content:"GetComputerName"; nocase; fast_pattern:only; reference:url, sans.org/reading_room/whitepapers/malicious/rss/_33649; classtype:misc-activity; sid:2012766; rev:5; metadata:created_at 2011_05_03, updated_at 2011_05_03;)

Added 2017-08-07 21:05:57 UTC

##alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET DELETED Suspicious IAT GetComputerName?"; flow:established,to_client; content:"GetComputerName"; nocase; fast_pattern:only; reference:url, sans.org/reading_room/whitepapers/malicious/rss/_33649; classtype:misc-activity; sid:2012766; rev:3;)

Added 2012-03-13 14:42:39 UTC

##alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET DELETED Suspicious IAT GetComputerName?"; flowbits:isset,ET.http.binary; flow:established,to_client; content:"GetComputerName"; nocase; fast_pattern:only; reference:url, sans.org/reading_room/whitepapers/malicious/rss/_33649; classtype:misc-activity; sid:2012766; rev:2;)

Added 2011-10-12 19:35:10 UTC

#alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET TROJAN Suspicious IAT GetComputerName?"; flowbits:isset,ET.http.binary; flow:established,to_client; content:"GetComputerName"; nocase; fast_pattern:only; classtype:misc-activity; reference:url, sans.org/reading_room/whitepapers/malicious/rss/_33649; sid:2012766; rev:1;)

Added 2011-05-03 18:07:16 UTC