Nume:BDS/Cycbot.B.726
Descoperit pe data de:25/11/2010
Tip:Backdoor Server
ITW:Da
Numar infectii raportate:Scazut
Potential de raspandire:Scazut
Potential de distrugere:Mediu
Marime:177.152 Bytes
MD5:5A87CEFC7A2DBD28A9764853CD92AFE9
Versiune VDF:7.10.06.140
Versiune IVDF:7.10.14.101 - Thursday, November 25, 2010

 General Metoda de raspandire:
   • Nu are rutina proprie de raspandire


Alias:
   •  TrendMicro: BKDR_CYCBOT.SMIB
   •  Sophos: Mal/FakeAV-IS
   •  Microsoft: Backdoor:Win32/Cycbot.B


Sistem de operare:
   • Windows 2000
   • Windows XP
   • Windows 2003
   • Windows Vista
   • Windows 7


Efecte secundare:
   • Posibilitatea accesului neautorizat la computer
   • Creeaza fisiere
   • Modificari in registri
   • Sustrage informatii

 Fisiere Se copiaza in urmatoarea locatie:
   • %APPDATA%\Microsoft\conhost.exe



Sunt create fisierele:

– %TEMPDIR%\csrss.exe Analiza ulterioara a relevat ca si acest fisier este malware. Detectat ca: TR/Gendal.6363163

– %APPDATA%\dwm.exe Analiza ulterioara a relevat ca si acest fisier este malware. Detectat ca: TR/Gendal.kdznnf

 Registrii sistemului Una din urmatoarele valori este adaugata in registri pentru pornirea automata a procesului dupa reboot:

–  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "conhost"="%APPDATA%\Microsoft\conhost.exe"



Urmatoarele chei sunt adaugate in registrii sistemului:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
   • "ProxyServer"="http=127.0.0.1:%numar%"

– [HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
   • "Shell"="explorer.exe,%APPDATA%\dwm.exe"



Urmatoarea cheie din registri este modificata:

– [HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows]
   Noua valoare:
   • "load"="%TEMPDIR%\csrss.exe"

 Terminarea proceselor Procesele care contin urmatoarele siruri de caractere sunt oprite:
   • Avast
   • AVG
   • Avira
   • BitDefender
   • Dr.Web
   • ESET NOD32
   • Kaspersky
   • McAfee
   • Norton


 Backdoor Deschide porturile:

– %fisier executat% port TCP aleator pentru a oferi functionalitate de backdoor.
– %fisier executat% port TCP aleator pentru a functiona ca server proxy.
– svchost.exe pe portul UDP 1032 pentru a oferi functionalitate de backdoor.


Servere contactate:
Urmatoarele:
   • http://**********ystemsone.com/blog/images/3521.jpg
   • http://**********lprocessoffline.com/blog/images/3521.jpg
   • http://**********airshampoo.com/blog/images/3521.jpg
   • http://**********badhead.com/blog/images/3521.jpg
   • http://**********eservermonitorings.com/blog/images/3521.jpg
   • http://**********nlinefreelibrarry.com/blog/images/3521.jpg
   • http://**********hopsonline.com/blog/images/3521.jpg
   • http://**********urityshllsonline.com/blog/images/3521.jpg
   • http://**********oroskopia.com/blog/images/3521.jpg
   • http://**********ewhoisdb.com/blog/images/3521.jpg
   • http://**********programmingshool.com/blog/images/3521.jpg
   • http://**********ssecureonline.com/blog/images/3521.jpg
   • http://**********bukaclubonline.com/blog/images/3521.jpg
   • http://**********midioz.com/blog/images/3521.jpg
   • http://**********ystemsone.com/blog/images/3522.jpg
   • http://**********lprocessoffline.com/blog/images/3522.jpg
   • http://**********airshampoo.com/blog/images/3522.jpg
   • http://**********badhead.com/blog/images/3522.jpg
   • http://**********eservermonitorings.com/blog/images/3522.jpg
   • http://**********nlinefreelibrarry.com/blog/images/3522.jpg
   • http://**********hopsonline.com/blog/images/3522.jpg
   • http://**********urityshllsonline.com/blog/images/3522.jpg
   • http://**********oroskopia.com/blog/images/3522.jpg
   • http://**********ewhoisdb.com/blog/images/3522.jpg
   • http://**********programmingshool.com/blog/images/3522.jpg
   • http://**********ssecureonline.com/blog/images/3522.jpg
   • http://**********bukaclubonline.com/blog/images/3522.jpg
   • http://**********midioz.com/blog/images/3522.jpg
   • http://**********ystemsone.com/blog/images/3523.jpg
   • http://**********lprocessoffline.com/blog/images/3523.jpg
   • http://**********airshampoo.com/blog/images/3523.jpg
   • http://**********badhead.com/blog/images/3523.jpg
   • http://**********eservermonitorings.com/blog/images/3523.jpg
   • http://**********nlinefreelibrarry.com/blog/images/3523.jpg
   • http://**********hopsonline.com/blog/images/3523.jpg
   • http://**********urityshllsonline.com/blog/images/3523.jpg
   • http://**********oroskopia.com/blog/images/3523.jpg
   • http://**********ewhoisdb.com/blog/images/3523.jpg
   • http://**********programmingshool.com/blog/images/3523.jpg
   • http://**********ssecureonline.com/blog/images/3523.jpg
   • http://**********bukaclubonline.com/blog/images/3523.jpg
   • http://**********midioz.com/blog/images/3523.jpg
   • http://**********ochrom.at/polytheism/pictures/TanzenderShiva.jpg
   • http://**********zyleafdesign.com/blog/images/share/stumble.png
   • http://**********zyleafdesign.com/blog/images/share/facebook.png
   • http://**********lsoftwaredevelopment.com/WindowsLiveWriter/web-2_0_thumb_1.gif
   • http://**********vatar.com/avatar.php?gravatar_id=f2a3889aff6fc9711a3cbcfe64067be1
   • http://**********vatar.com/avatar.php?gravatar_id=f2a3889aff6fc9711a3cbcfe64067be2
   • http://**********usho.com/wp-content/uploads/2010/09/web-20-what-is-300x251.jpg
   • http://**********k.com/img/icons/twitter.png
   • http://**********k.com/img/icons/facebook.png
   • http://**********lthylifenow.com/templates/7348/images/header_logo.jpg
   • http://**********lthylifenow.com/templates/7349/images/header_logo.jpg
   • http://**********landandbarrett.com/images/footer/account.jpg
   • http://**********landandbarrett.com/images/footer/account.gif
   • http://**********ionsautoelectric.com/images/50-217-1_F_1_.jpg
   • http://**********ionsautoelectric.com/images/50-217-1_F_2_.jpg
   • http://**********inebizdirectory.com/images/PowerShowBanner.gif
   • http://**********inebizdirectory.com/images/PowerHideBanner.gif
   • http://**********tpropaganda.net/blog/pics/3321.jpg
   • http://**********tpropaganda.net/blog/pics/3322.jpg
   • http://**********anesegreenteaonline.com/assets/images/greentea-cha-1.gif
   • http://**********anesegreenteaonline.com/assets/images/greentea-cha-2.gif
   • http://**********enherbalteaonline.com/images/greenherbalteagirlholdingcup250.gif
   • http://**********enherbalteaonline.com/images/greenherbalteagirlholdingcup350.gif
   • 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://**********inedatingsecretfriends.com/images/im133.jpg
   • http://**********inedatingsecretfriends.com/images/im134.jpg
   • http://**********stats.com/images/logo.png

Astfel se pot transmite informatii si se poate obtine control la distanta.

Trimte informatii despre:
    • Loguri create
    • adresele vizitate


Posibilitati de control la distanta:
    • Vizitarea unui website

 Furt de informatii – Este pornita o rutina de logare dupa ce viziteaza un site care contine unul din urmatoarele siruri de caractere in URL:
   • .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.; amazon.; aol/search; aolcdn.; aolsvc.; bing.com;
      bing.com/search; blogger; brightcove.com; doubleclick.; ebay.; err069;
      facebook.; flickr; google.; gstatic.; 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.

 Injectarea codului malware in alte procese – Se injecteaza ca un thread remote intr-un proces.

    Numele procesului:
   • svchost.exe


 Detaliile fisierului Limbaj de programare:
 Limbaj de programare folosit: C (compilat cu Microsoft Visual C++).


Compresia fisierului:
Pentru a ingreuna detectia si a reduce marimea fisierului, este folosit urmatorul program de arhivare:
   • UPX

Description inserted by Andrei Ilie on Thursday, August 4, 2011
Description updated by Andrei Ilie on Friday, August 5, 2011

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