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Virus:TR/Cycbot.1
Date discovered:22/06/2011
Type:Trojan
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Medium
Static file:Yes
File size:187.904 Bytes
MD5 checksum:4D0B59243D9AC9D047A20858CAF74F52
VDF version:7.11.10.68 - Wednesday, June 22, 2011
IVDF version:7.11.10.68 - Wednesday, June 22, 2011

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  TrendMicro: BKDR_CYCBOT.SME3
   •  Sophos: Troj/FakeAV-EFL
     Microsoft: Backdoor:Win32/Cycbot.B


Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003
    Windows Vista
    Windows 7


Side effects:
   • Third party control
   • Drops files
   • Registry modification
   • Steals information

 Files It copies itself to the following location:
   • %TEMPDIR%\csrss.exe



The following file is created:

%APPDATA%\%hex values%.%hex values% Contains parameters used by the malware.

 Registry One of the following values is added in order to run the process after reboot:

  [HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows]
   • "Load"="%TEMPDIR%\csrss.exe"



The following registry key is changed:

Lower security settings from Internet Explorer:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
   New value:
   • "MigrateProxy"=dword:00000001
   • "ProxyEnable"=dword:00000001
   • "ProxyServer"="http=127.0.0.1:%number%"
   • "ProxyOverride"=-
   • "AutoConfigURL"=-

 Process termination Processes with one of the following strings are terminated:
   • AVG
   • Avast
   • Avira
   • Dr.Web
   • Kaspersky
   • McAfee
   • ESET NOD32
   • Norton
   • BitDefender


 Backdoor The following ports are opened:

%executed file% on a random TCP port in order to provide a proxy server.
%executed file% on a random TCP port in order to provide backdoor capabilities.


Contact server:
All of the following:
   • http://**********allhomespace.com/blog/images/3521.jpg?v27=84&tq=gK**********
   • http://**********nebizdirectory.com/images/PowerHideBanner.gif?v27=41&tq=gJ**********

As a result it may send information and remote control could be provided.

Sends information about:
     Created logfiles
     visited URLs


Remote control capabilities:
     Visit a website

 Stealing  It uses a network sniffer that checks for the following strings:
   • .2mdn.; .abmr.; .adtechus.; .aol.; .atdmt.; .atwola.;
      .autodatadirect.; .bing.net; .dartsearch.; .doubleclick.; .ggpht.;
      .google; .ivwbox.; .mapquestapi.; .microsoft.; .opera.; .tacoda.;
      .thawte.; .tlowdb.; .truveo.; .virtualearth.; .wsod.; .yimg.com;
      .ypcdn.; /complete/search; /gen_204; /images; /imglanding; ?query=;
      amazon.; aol/search; aolcdn.; aolsvc.; bing.com; bing.com/search;
      blogger; brightcove.com; doubleclick.; ebay.; err069; facebook.;
      flickr; google-analytics.; google.; googlesyndication.;
      googleusercontent.; gstatic.; http%3A##; imdb.; mapq.st; msn;
      scorecardresearch.com; search.aol.; search.yahoo.com/search;
      searcht2.aol.; start=; start=0; suche.aol.; twitter.; wikimedia.;
      wikipedia.; yahoo.; yahoo.com; youtube.; ytimg.

 Injection     All of the following processes:
   • wmiprvse.exe
   • svchost.exe


 Miscellaneous Accesses internet resources:
   • coolresourses.com
   • greatecontent.com
   • imgg.dt00.net


String:
Furthermore it contains the following string:
   • IsDebuggerPresent

 File details Programming language:
The malware program was written in MS Visual C++.


Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with the following runtime packer:
   • UPX

Descrizione inserita da Andrei Ilie su lunedì 24 ottobre 2011
Descrizione aggiornata da Andrei Ivanes su venerdì 28 ottobre 2011

Indietro . . . .
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