A forum for reverse engineering, OS internals and malware analysis 

Forum for announcements and questions about tools and software.
 #6369  by gjf
 Tue May 17, 2011 7:24 pm
Question to developer - could you please respond?

The question touches upon investigation of Qimiral sample. The network log includes the following lines:
OUT,TCP - HTTP,10.0.2.15,64.12.96.129:80,C:\Documents and Settings\User\Desktop\Piggy.exe
IN,TCP - HTTP,64.12.96.129:80,10.0.2.15,C:\Documents and Settings\User\Desktop\Piggy.exe
IN,TCP - HTTP,198.78.212.126:80,10.0.2.15,C:\Documents and Settings\User\Desktop\Piggy.exe
IN,TCP - HTTP,213.248.111.235:80,10.0.2.15,C:\Documents and Settings\User\Desktop\Piggy.exe
IN,TCP - HTTP,195.12.231.10:80,10.0.2.15,C:\Documents and Settings\User\Desktop\Piggy.exe
According to Anubis logs there is no inbound connections.

So how can it be explained: according to log it is TCP connections and they are associated with malware file, is it false?
 #6370  by Buster_BSA
 Tue May 17, 2011 10:00 pm
gjf wrote:Question to developer - could you please respond?

The question touches upon investigation of Qimiral sample. The network log includes the following lines:
OUT,TCP - HTTP,10.0.2.15,64.12.96.129:80,C:\Documents and Settings\User\Desktop\Piggy.exe
IN,TCP - HTTP,64.12.96.129:80,10.0.2.15,C:\Documents and Settings\User\Desktop\Piggy.exe
IN,TCP - HTTP,198.78.212.126:80,10.0.2.15,C:\Documents and Settings\User\Desktop\Piggy.exe
IN,TCP - HTTP,213.248.111.235:80,10.0.2.15,C:\Documents and Settings\User\Desktop\Piggy.exe
IN,TCP - HTTP,195.12.231.10:80,10.0.2.15,C:\Documents and Settings\User\Desktop\Piggy.exe
According to Anubis logs there is no inbound connections.

So how can it be explained: according to log it is TCP connections and they are associated with malware file, is it false?
In the Anubis report you can see:

" HTTP Conversations:
[=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=]
From ANUBIS:1038 to 64.12.164.247:80 - [ http://www.icq.com ]
Request: [ GET /people/566539612 ], Response: [ 200 "OK" ]"

I don´t know why Anubis does not report inbound traffic, but it´s logic to think that if you send a GET to http://www.icq.com you will receive a reply, will not you? In fact you will receive this page:

http://www.icq.com/people/566539612

Also I can comment that BSA does not "invent" traffic; BSA just uses WinPCap to watch traffic and capture packets.

Therefore I think you should ask Anubis developers why their analyzer doesn´t report inbound traffic. In my opinion BSA is working fine and Anubis is missing information.

Even more... you can check at "Viewer > View Packets" the packets that were transfered. I´m pretty sure you will find the page: http://www.icq.com/people/566539612
 #6371  by gjf
 Tue May 17, 2011 10:12 pm
Yes, I can agree with you concerning 64.12.96.129 - actually it is icq.com, but 198.78.212.126:80, 213.248.111.235:80 and 195.12.231.10:80....
Possibly these hosts belongs to icq.com, possibly it is just banners or ads, but anyway thay have no index page.

Thanks for quick reply.
  • 1
  • 8
  • 9
  • 10
  • 11
  • 12
  • 32