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Virus:BDS/Cycbot.B.734
Date discovered:26/11/2010
Type:Backdoor Server
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Medium
File size:186.880 Bytes
MD5 checksum:2156363DB5EDDFB28F64F0A0A3B37568
VDF version:7.10.06.151
IVDF version:7.10.14.112 - Friday, November 26, 2010

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  TrendMicro: BKDR_CYCBOT.SMIB
   •  Bitdefender: Backdoor.Cycbot.J
   •  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:
   • %APPDATA%\dwm.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\Winlogon]
   • "Shell"="explorer.exe,%APPDATA%\dwm.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://**********zyleafdesign.com/blog/images/share/facebook.png
   • http://**********zyleafdesign.com/blog/images/share/stumble.png
   • http://**********ssecureonline.com/blog/images/3521.jpg
   • http://**********ssecureonline.com/blog/images/3522.jpg
   • http://**********ssecureonline.com/blog/images/3523.jpg
   • http://**********usho.com/wp-content/uploads/2010/09/web-20-what-is-300x251.jpg
   • http://**********ewhoisdb.com/blog/images/3521.jpg
   • http://**********ewhoisdb.com/blog/images/3522.jpg
   • http://**********ewhoisdb.com/blog/images/3523.jpg
   • http://**********vatar.com/avatar.php?gravatar_id=f2a3889aff6fc9711a3cbcfe64067be1
   • http://**********vatar.com/avatar.php?gravatar_id=f2a3889aff6fc9711a3cbcfe64067be2
   • http://**********enherbalteaonline.com/images/greenherbalteagirlholdingcup250.gif
   • http://**********enherbalteaonline.com/images/greenherbalteagirlholdingcup350.gif
   • http://**********lthylifenow.com/templates/7348/images/header_logo.jpg
   • http://**********lthylifenow.com/templates/7349/images/header_logo.jpg
   • http://**********midioz.com/blog/images/3521.jpg
   • http://**********midioz.com/blog/images/3522.jpg
   • http://**********midioz.com/blog/images/3523.jpg
   • http://**********landandbarrett.com/images/footer/account.gif
   • http://**********landandbarrett.com/images/footer/account.jpg
   • http://**********anesegreenteaonline.com/assets/images/greentea-cha-1.gif
   • http://**********anesegreenteaonline.com/assets/images/greentea-cha-2.gif
   • http://**********derjoys.com/blog/images/3521.jpg
   • http://**********derjoys.com/blog/images/3522.jpg
   • http://**********derjoys.com/blog/images/3523.jpg
   • http://**********oroskopia.com/blog/images/3521.jpg
   • http://**********oroskopia.com/blog/images/3522.jpg
   • http://**********oroskopia.com/blog/images/3523.jpg
   • http://**********tpropaganda.net/blog/pics/3321.jpg
   • http://**********tpropaganda.net/blog/pics/3322.jpg
   • http://**********ldbaccess.com/blog/images/3521.jpg
   • http://**********ldbaccess.com/blog/images/3522.jpg
   • http://**********ldbaccess.com/blog/images/3523.jpg
   • http://**********iadryvers.com/blog/images/3521.jpg
   • http://**********iadryvers.com/blog/images/3522.jpg
   • http://**********iadryvers.com/blog/images/3523.jpg
   • http://**********kiwals.com/blog/images/3521.jpg
   • http://**********kiwals.com/blog/images/3522.jpg
   • http://**********kiwals.com/blog/images/3523.jpg
   • http://**********ochrom.at/polytheism/pictures/TanzenderShiva.jpg
   • http://**********ionsautoelectric.com/images/50-217-1_F_1_.jpg
   • http://**********ionsautoelectric.com/images/50-217-1_F_2_.jpg
   • http://**********inebizdirectory.com/images/PowerHideBanner.gif
   • http://**********inebizdirectory.com/images/PowerShowBanner.gif
   • http://**********inedatingsecretfriends.com/images/im133.jpg
   • http://**********inedatingsecretfriends.com/images/im134.jpg
   • http://**********ineinstitute.com/g7/images/logo.jpg
   • http://**********ineinstitute.com/g7/images/logo2.jpg
   • http://**********ineinstitute.com/g7/images/logo3.jpg
   • http://**********ineinstitute.com/g7/images/logo4.jpg
   • http://**********helpsme.com/blog/images/3521.jpg
   • http://**********helpsme.com/blog/images/3522.jpg
   • http://**********helpsme.com/blog/images/3523.jpg
   • http://**********repolists.com/blog/images/3521.jpg
   • http://**********repolists.com/blog/images/3522.jpg
   • http://**********repolists.com/blog/images/3523.jpg
   • http://**********k.com/img/icons/facebook.png
   • http://**********k.com/img/icons/twitter.png
   • http://**********lsoftwaredevelopment.com/WindowsLiveWriter/web-2_0_thumb_1.gif
   • http://**********bukaclubonline.com/blog/images/3521.jpg
   • http://**********bukaclubonline.com/blog/images/3522.jpg
   • http://**********bukaclubonline.com/blog/images/3523.jpg
   • http://**********kersonline.com/blog/images/3521.jpg
   • http://**********kersonline.com/blog/images/3522.jpg
   • http://**********kersonline.com/blog/images/3523.jpg
   • http://**********programmingshool.com/blog/images/3521.jpg
   • http://**********programmingshool.com/blog/images/3522.jpg
   • http://**********programmingshool.com/blog/images/3523.jpg
   • http://**********rentclist.com/blog/images/3521.jpg
   • http://**********rentclist.com/blog/images/3522.jpg
   • http://**********rentclist.com/blog/images/3523.jpg

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 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

說明撰寫者 Andrei Ilie 開啟 2011年8月8日星期一
說明更新者 Andrei Ilie 開啟 2011年8月8日星期一

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