BKDR_QBOT.DHB
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Backdoor
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware, Bundled as malware component
This backdoor may be dropped by other malware. It arrives as a component bundled with malware/grayware packages. It may be unknowingly downloaded by a user while visiting malicious websites.
It connects to a website to send and receive information.
It sends the information it gathers to remote sites.
It prevents users from visiting antivirus-related websites that contain specific strings.
TECHNICAL DETAILS
194,560 bytes
EXE
No
04 Oct 2012
Compromises system security, Connects to URLs/IPs, Steals information, Terminates processes
Arrival Details
This backdoor may be dropped by other malware.
It arrives as a component bundled with malware/grayware packages.
It may be unknowingly downloaded by a user while visiting malicious websites.
Installation
This backdoor injects codes into the following process(es):
- iexplore.exe
- outlook.exe
- firefox.exe
- opera.exe
- skype.exe
- msnmsgr.exe
- yahoomessenger.exe
- msmsgs.exe
- wscntfy.exe
- wuauclt.exe
Backdoor Routine
This backdoor connects to the following websites to send and receive information:
- {BLOCKED}.{BLOCKED}.239.145:8080
- {BLOCKED}istr.in
- {BLOCKED}vtkn.in.ua
- {BLOCKED}uytdk.info
- {BLOCKED}asudskfoe.org
- {BLOCKED}iakfuuasd.net
- {BLOCKED}s.{BLOCKED}v.ua
- {BLOCKED}m.{BLOCKED}v.ua
- {BLOCKED}n.org
- {BLOCKED}nz.net
- {BLOCKED}mausj.org
Process Termination
This backdoor terminates the following services if found on the affected system:
- msdev.exe
- dbgview.exe
- mirc.exe
- ollydbg.exe
- ctfmon.exe
Information Theft
This backdoor monitors the Internet Explorer (IE) activities of the affected system, specifically the address bar or title bar. It recreates a legitimate website with a spoofed login page if a user visits banking sites with the following strings in the address bar or title bar:
- .web-access.com
- .webcashmgmt.com
- /achupload
- /cashman/
- /cashplus/
- /clkccm/
- /cmserver/
- /corpach/
- /ibws/
- /payments/ach
- /stbcorp/
- /wcmpr/
- /wcmpw/
- /wcmtr/
- /wires/
- /wiret
- access.jpmorgan.com
- accessonline.abnamro.com
- achbatchlisting
- business-eb.ibanking-services.com
- businessaccess.citibank.citigroup.com
- businessbankingcenter.synovus.com
- businessinternetbanking.synovus.com
- businessonline.huntington.com
- businessonline.tdbank.com
- cashproonline.bankofamerica.com
- cbs.firstcitizensonline.com
- chsec.wellsfargo.com
- commercial.bnc.ca
- commercial.wachovia.com
- commercial2.wachovia.com
- commercial3.wachovia.com
- commercial4.wachovia.com
- corporatebanking
- cpw-achweb.bankofamerica.com
- directline4biz.com
- directpay.wellsfargo.com
- e-facts.org
- e-moneyger.com
- each.bremer.com
- ebanking-services.com
- express.53.com
- firstmeritib.com
- firstmeritib.com/defaultcorp.aspx
- goldleafach.com
- iachwellsprod.wellsfargo.com
- ibc.klikbca.com
- iris.sovereignbank.com
- itreasury.regions.com
- itreasurypr.regions.com
- jsp/mainWeb.jsp
- ktt.key.com
- moneymanagergps.com
- netconnect.bokf.com
- nj00-wcm
- ocm.suntrust.com
- onlineserv/CM
- otm.suntrust.com
- paylinks.cunet.org
- premierview.membersunited.org
- providentnjolb.com
- scotiaconnect.scotiabank.com
- securentrycorp.amegybank.com
- singlepoint.usbank.com
- svbconnect.com
- tcfexpressbusiness.com
- tmconnectweb
- treas-mgt.frostbank.com
- treasury.pncbank.com
- trz.tranzact.org
- tssportal.jpmorgan.com
- ub-businessonline.blilk.com
- wc.wachovia.com
- wcp.wachovia.com
- web-cashplus.com
- webexpress.tdbank.com
- wellsoffice.wellsfargo.com
It sends the information it gathers to remote sites.
Other Details
Based on analysis of the codes, it has the following capabilities:
- Connects to a certain IRC server using a certain port and joins a channel where it receives commands from a malicious user. It sends the following information to its C&C server:
- ext_ip
- dnsname
- hostname
- country
- state
- city
- user
- domain
- is_admin
- os
- time
- qbot_version
- install_time
It prevents users from visiting antivirus-related websites that contain the following strings:
- .eset
- agnitum
- ahnlab
- arcabit
- avast
- avg
- avira
- avp
- bit9
- bitdefender
- castlecops
- centralcommand
- clamav
- clearclouddns
- comodo
- computerassociates
- cpsecure
- defender
- drweb
- emsisoft
- esafe
- etrust
- ewido
- explabs.
- f-prot
- f-secure
- fortinet
- gdata
- grisoft
- hacksoft
- hauri
- hautesecure.com
- ikarus
- jotti
- k7computing
- kaspersky
- malware
- mc
- phishtank.com
- sanasecurity
- truste.com
- webroot.
NOTES:
It is also capable of the following:
- Download/upload files
- Create/delete/modify files
- Use a list of usernames and passwords for bruteforce attacks
- Create/terminate processes
SOLUTION
9.200
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Step 2
Scan your computer with your Trend Micro product to delete files detected as BKDR_QBOT.DHB. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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