alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"BLEEDING-EDGE TROJAN Proxy.Win32.Wopla.ag Check-In"; flow:established,to_server; content:"|0a 00 00 00 00 00 00 00 00 00 00 00|"; depth:12; classtype:trojan-activity; sid:2007603; rev:1;)
Added 2007-09-06 01:49:00 UTC
Possible FP when desktop replies with CEIP message back to MS ??
Partial Packet capture follows:
Event ID : 3:1:2051713 Timestamp : 9/27/2007 7:59:17 AM
Event Name : BLEEDING-EDGE TROJAN Proxy.Win32.Wopla.ag Check-In
Classification : trojan-activity
IP Header Information :
IPv4: 000.000.000.000 -> 131.107.113.76
Source: Local Tech's Desktop -> sqm.msn.com
hlen=5 TOS=0 dlen=1172 ID=7303 flags=2 offset=0 TTL=127 chksum=43777
TCP Header Information :
sport=1320 -> dport=80 flags=***AP*** seq=4000293484
ack=2468127061 off=5 res=0 win=65535 urp=0 chksum=64373
Options:
Packet Payload:
0A 00 00 00 00 00 00 00 00 00 00 00 D3 C5 00 00 ............??..
00 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00 ................
28 CE 00 00 00 00 00 00 04 00 00 00 00 00 00 00 (?..............
00 00 00 00 36 CF 00 00 00 00 00 00 04 00 00 00 ....6?..........
00 00 00 00 00 00 00 00 60 D4 00 00 00 00 00 00 ........`?......
02 00 00 00 00 00 00 00 00 00 00 00 20 3A 01 00 ............ :..
04 10 ED 0D 09 00 00 00 00 00 00 00 00 00 00 00 ..?.............
0B 6A 01 00 00 00 00 00 0A 00 00 00 00 00 00 00 .j..............
00 00 00 00 8D 6A 01 00 00 00 00 00 02 00 00 00 ....?j..........
00 00 00 00 00 00 00 00 D6 76 01 00 00 00 00 00 ........?v......
0D 00 00 00 00 00 00 00 00 00 00 00 A5 D4 01 00 ............??..
-- RichardUllrich - 27 Sep 2007