TROJ_MOSERAN.BMC

August 02, 2017
 Modified by: Jennifer Gumban
 ALIASES:

Ransom-FATM!0BD442DD6318 (McAfee); Packed.Generic.402 (Symantec); Trojan-PSW.Win32.Tepfer.krgc (Kaspersky); VirTool.Win32.Obfuscator.da!j (v) (Sunbelt); Agent (AVG)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It modifies the Internet Explorer Zone Settings.

  TECHNICAL DETAILS

File Size:

546,816 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

02 Dec 2013

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Trojan drops the following copies of itself into the affected system:

  • %User Profile%\hovynqoruhup.exe

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)

Autostart Technique

This Trojan adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
hovynqoruhup = "%User Profile%\hovynqoruhup.exe"

Other System Modifications

This Trojan adds the following registry entries:

HKEY_CURRENT_USER\Software\WinRAR
HWID = "{random values}"

HKEY_CURRENT_USER\Software\WinRAR
Client Hash = "{Random Hex Values}"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion
hovynqoruhupzap = "{Random Hex Values}"

It modifies the following registry entries:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Tcpip\Parameters
MaxUserPort = "65534"

(Note: The default value data of the said registry entry is {Default Value}.)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Hardware Profiles\0001\Software\
Microsoft\windows\CurrentVersion\
Internet Settings
ProxyEnable = "1"

(Note: The default value data of the said registry entry is {Default Value}.)

Web Browser Home Page and Search Page Modification

This Trojan modifies the Internet Explorer Zone Settings.

Other Details

This Trojan connects to the following possibly malicious URL:

  • {BLOCKED}p.com
  • {BLOCKED}k.net
  • {BLOCKED}ne.com
  • {BLOCKED}vestor.ca
  • {BLOCKED}a.com.br
  • {BLOCKED}cificrepairs.com
  • {BLOCKED}ioambiente.com
  • {BLOCKED}webs.net
  • {BLOCKED}media.com
  • {BLOCKED}ivechat.us
  • {BLOCKED}e-des-druides.com
  • {BLOCKED}h.com
  • {BLOCKED}utions.com
  • {BLOCKED}o.net
  • {BLOCKED}ntal.com
  • {BLOCKED}ared.com
  • {BLOCKED}ills.com
  • {BLOCKED}a.com
  • {BLOCKED}ttesting.com
  • {BLOCKED}ec.com
  • {BLOCKED}4.{BLOCKED}smtp-in.l.google.com
  • {BLOCKED}en-haus.de
  • {BLOCKED}arm.org
  • {BLOCKED}esajandek.hu
  • {BLOCKED}r.com
  • {BLOCKED}eturadigital.com
  • {BLOCKED}fenburg-abkm.com
  • {BLOCKED}j.co.jp
  • {BLOCKED}sk.com.sg
  • {BLOCKED}c.net
  • {BLOCKED}ce-web.net
  • {BLOCKED}direkt.net
  • {BLOCKED}ansurfing.at
  • {BLOCKED}a.it
  • {BLOCKED}s.com.mv
  • {BLOCKED}dge.com
  • {BLOCKED}irebusiness.org
  • {BLOCKED}ngle.com
  • {BLOCKED}onegroup.com.my
  • {BLOCKED}r.cz
  • {BLOCKED}ciet.com
  • {BLOCKED}rts.com
  • {BLOCKED}.bluehost.com
  • {BLOCKED}nternet.nl
  • {BLOCKED}arm.com.au
  • {BLOCKED}s.org
  • {BLOCKED}inegames.com
  • {BLOCKED}d.com
  • {BLOCKED}lectric.com
  • {BLOCKED}llmedia.com
  • {BLOCKED}lcitytuxedo.com
  • {BLOCKED}lle-prod.com
  • {BLOCKED}u.com
  • {BLOCKED}hoice.org
  • {BLOCKED}nting.com.au
  • {BLOCKED}l.com
  • {BLOCKED}kalip.com.tr
  • {BLOCKED}ldelsonido.com
  • {BLOCKED}gland.com
  • {BLOCKED}ol.com
  • {BLOCKED}ybarry.com
  • {BLOCKED}ative.com
  • {BLOCKED}supplies.net
  • {BLOCKED}bal.net
  • {BLOCKED}all.com
  • {BLOCKED}tel.com
  • {BLOCKED}t.com
  • {BLOCKED}tor.com
  • {BLOCKED}print.nl
  • {BLOCKED}iblepoker.com
  • {BLOCKED}erate.com
  • {BLOCKED}tingls.com
  • {BLOCKED}ered.org
  • {BLOCKED}tlinsenpoint.de
  • {BLOCKED}permarkt.nl
  • {BLOCKED}ec.de
  • {BLOCKED}uilders.com
  • {BLOCKED}c.org
  • {BLOCKED}ocess.org
  • {BLOCKED}k.com
  • {BLOCKED}esh.com
  • {BLOCKED}onents.com
  • {BLOCKED}p.com.ar
  • {BLOCKED}d.com
  • {BLOCKED}scueusa.com
  • {BLOCKED}le.ca
  • {BLOCKED}o.se
  • {BLOCKED}eofbaker.org
  • {BLOCKED}aro.com
  • {BLOCKED}f.com
  • {BLOCKED}ntasies.com
  • {BLOCKED}pia.co.kr
  • {BLOCKED}ofgreece.com
  • {BLOCKED}n-ist-pink.de
  • {BLOCKED}oodpcb.com
  • {BLOCKED}mi.com
  • {BLOCKED}kyaku.com
  • {BLOCKED}ming.com
  • {BLOCKED}emjewelry.com
  • {BLOCKED}olicy.org
  • {BLOCKED}rmations.net
  • {BLOCKED}en.com
  • {BLOCKED}o.net
  • {BLOCKED}-group.de
  • {BLOCKED}alia.com
  • {BLOCKED}odrigo.com.br
  • {BLOCKED}es.com
  • {BLOCKED}x.com
  • {BLOCKED}ons.com
  • {BLOCKED}efetishzone.com
  • {BLOCKED}up.com
  • {BLOCKED}dows.co.uk
  • {BLOCKED}online.de
  • {BLOCKED}x.com
  • {BLOCKED}ra.com
  • {BLOCKED}tinfo.com
  • {BLOCKED}rcorp.com
  • {BLOCKED}iamorini.com
  • {BLOCKED}e1000.ca
  • {BLOCKED}-high.school.nz
  • {BLOCKED}ickallergy.com
  • {BLOCKED}tentauction.com
  • {BLOCKED}pot.co.za
  • {BLOCKED}arine.com
  • {BLOCKED}esk.com
  • {BLOCKED}ngonlinemagazine.com
  • {BLOCKED}gypt.com
  • {BLOCKED}a.com
  • {BLOCKED}ks.com
  • {BLOCKED}isions.com
  • {BLOCKED}rmusa.com
  • {BLOCKED}k.com.pl
  • {BLOCKED}tels.com
  • {BLOCKED}smtp-in.l.google.com
  • {BLOCKED}rk-moossee.ch
  • {BLOCKED}luecenter.com
  • {BLOCKED}ltimedia.com
  • {BLOCKED}are.nl
  • {BLOCKED}t.com
  • {BLOCKED}wiese.de
  • {BLOCKED}ge-navi.com
  • {BLOCKED}w.net
  • {BLOCKED}sforesthill.com
  • {BLOCKED}x.com.pl
  • {BLOCKED}1.smtp.{BLOCKED}ingengine.com
  • {BLOCKED}hillschurch.com
  • {BLOCKED}conseils.com
  • {BLOCKED}e.com
  • {BLOCKED}h.com
  • {BLOCKED}ultarim.com.tr
  • {BLOCKED}c.ge
  • {BLOCKED}ate.co.jp
  • {BLOCKED}c.com
  • {BLOCKED}t.com
  • {BLOCKED}okuren.com
  • {BLOCKED}cn.com
  • {BLOCKED}ra.com
  • {BLOCKED}al.com
  • {BLOCKED}ipping.com
  • {BLOCKED}i-hp.com
  • {BLOCKED}uktor.si
  • {BLOCKED}sa.com
  • {BLOCKED}i.or.jp
  • {BLOCKED}toff.ru
  • {BLOCKED}rah.com
  • {BLOCKED}ys.com
  • {BLOCKED}kson.com
  • {BLOCKED}idica.com
  • {BLOCKED}urch.net
  • {BLOCKED}ist-uk.com
  • {BLOCKED}construction.com
  • {BLOCKED}lookz.com
  • {BLOCKED}-about.com
  • {BLOCKED}l.{BLOCKED}l.net
  • {BLOCKED}l57.us2.{BLOCKED}v.net
  • {BLOCKED}l7.{BLOCKED}lwaves.co.nz
  • {BLOCKED}imp.com
  • {BLOCKED}corp.com
  • {BLOCKED}man.com
  • {BLOCKED}ntralaya.com
  • {BLOCKED}grimes.co.uk
  • {BLOCKED}hn.com
  • {BLOCKED}grp-spb.ru
  • {BLOCKED}ssiecologia.com
  • {BLOCKED}rtapsandshowers.com
  • {BLOCKED}kusa.com
  • {BLOCKED}rti.com
  • {BLOCKED}anco.com
  • {BLOCKED}ux.ch
  • {BLOCKED}s-jacquelin.com
  • {BLOCKED}tga.com
  • {BLOCKED}io-teatras.lt
  • {BLOCKED}ch.net
  • {BLOCKED}r-vacaciones.com
  • {BLOCKED}mers.com
  • {BLOCKED}asrols.com
  • {BLOCKED}glight-net.com
  • {BLOCKED}e.com.au
  • {BLOCKED}a.com
  • {BLOCKED}.mail.ru
  • {BLOCKED}gcw.com
  • {BLOCKED}ecurtiss.com
  • {BLOCKED}o.org
  • {BLOCKED}ictures.com
  • {BLOCKED}l.com.br
  • {BLOCKED}oxininstitute.com
  • {BLOCKED}ictionary.com
  • {BLOCKED}ay.com.cn
  • {BLOCKED}e.com.br
  • {BLOCKED}roya.com
  • {BLOCKED}ch.com
  • {BLOCKED}-yamasaki.com
  • {BLOCKED}m.jp
  • {BLOCKED}klam.ru
  • {BLOCKED}u.net
  • {BLOCKED}r.com.au
  • {BLOCKED}networks.net
  • {BLOCKED}l.com
  • {BLOCKED}e.net
  • {BLOCKED}-school.com
  • {BLOCKED}w.com
  • {BLOCKED}osis.com
  • {BLOCKED}all-pilot.de
  • {BLOCKED}nicas.com
  • {BLOCKED}nna.com
  • {BLOCKED}a.com
  • {BLOCKED}eds.com
  • {BLOCKED}sion.co.in
  • {BLOCKED}c.ca
  • {BLOCKED}r.net
  • {BLOCKED}li.com
  • {BLOCKED}iauno.cz
  • {BLOCKED}s.ba
  • {BLOCKED}toscorydon.com
  • {BLOCKED}club.de
  • {BLOCKED}uting.com
  • {BLOCKED}tackwarehouse.com.au
  • {BLOCKED}efield.co.uk
  • {BLOCKED}ft.ru
  • {BLOCKED}odfoodplc.co.uk
  • {BLOCKED}chre.com
  • {BLOCKED}ence.com
  • {BLOCKED}hits.com
  • {BLOCKED}le.com.br
  • {BLOCKED}mcintyre.com.au
  • {BLOCKED}s.fr
  • {BLOCKED}connection.ca
  • {BLOCKED}aire.net
  • {BLOCKED}avid.com
  • {BLOCKED}y.com
  • {BLOCKED}andswanson.com
  • {BLOCKED}spizza.ph
  • {BLOCKED}il.com
  • {BLOCKED}iteexpress.com
  • {BLOCKED}lumi.com
  • {BLOCKED}les.co.uk
  • {BLOCKED}etalsinc.com
  • {BLOCKED}o.org
  • {BLOCKED}p.{BLOCKED}con.net
  • {BLOCKED}p.live.com
  • {BLOCKED}p.mail.yahoo.com
  • {BLOCKED}p.sbcglobal.{BLOCKED}o.com
  • {BLOCKED}re.com
  • {BLOCKED}ac.com
  • {BLOCKED}i.org
  • {BLOCKED}ot.net
  • {BLOCKED}aginggroup.com
  • {BLOCKED}ysaturday.com
  • {BLOCKED}dia.ca
  • {BLOCKED}pbizhub.com
  • {BLOCKED}m.nl
  • {BLOCKED}ennygames.com
  • {BLOCKED}ildlifeart.com
  • {BLOCKED}rance.com
  • {BLOCKED}g-navigator.com
  • {BLOCKED}amgirl.com
  • {BLOCKED}stka.com
  • {BLOCKED}di.com
  • {BLOCKED}kon.com
  • {BLOCKED}g-video.com
  • {BLOCKED}oraphilippines.com
  • {BLOCKED}vis.com
  • {BLOCKED}a.co.jp
  • {BLOCKED}ospas.com
  • {BLOCKED}aldsongroup.com
  • {BLOCKED}ntinghouseltd.co.uk
  • {BLOCKED}gery.com
  • {BLOCKED}ylizards.com
  • {BLOCKED}rkey.com
  • {BLOCKED}pe.com
  • {BLOCKED}sondesign.com
  • {BLOCKED}icemills.com
  • {BLOCKED}arthcare.com.au
  • {BLOCKED}meuse.com
  • {BLOCKED}chiimpianti.com
  • {BLOCKED}teurs.com
  • {BLOCKED}lau.com
  • {BLOCKED}y-works.com
  • {BLOCKED}dra.net
  • {BLOCKED}ting.com
  • {BLOCKED}u.org
  • {BLOCKED}edu.bo
  • {BLOCKED}n89.com
  • {BLOCKED}aproject.com
  • {BLOCKED}u.net
  • {BLOCKED}ia.com.pl
  • {BLOCKED}r.by
  • {BLOCKED}am.com
  • {BLOCKED}a.cz
  • {BLOCKED}gwithleaders.com
  • {BLOCKED}llsstl.org
  • {BLOCKED}semarketing.com
  • {BLOCKED}ms.uk.com
  • {BLOCKED}f.{BLOCKED}na.gov
  • {BLOCKED}ndhillwinery.com
  • {BLOCKED}pteam.com
  • {BLOCKED}erontheweb.com
  • www.{BLOCKED}-ime.com
  • www.{BLOCKED}s-edge.com
  • www.{BLOCKED}ro.jp
  • www.{BLOCKED}ows.co.uk
  • www.{BLOCKED}b.net
  • www.{BLOCKED}al.or.id
  • www.{BLOCKED}n.com
  • www.{BLOCKED}or.com
  • www.{BLOCKED}nect.co.za
  • www.{BLOCKED}us.com
  • www.{BLOCKED}a.com
  • www.{BLOCKED}oto.com
  • www.{BLOCKED}nter.com
  • www.{BLOCKED}r.com
  • www.{BLOCKED}uction.com
  • www.{BLOCKED}ubs.com
  • www.{BLOCKED}pe.com
  • www.{BLOCKED}s.net
  • www.{BLOCKED}o-ind.com
  • www.{BLOCKED}ero.com
  • www.{BLOCKED}hino.com
  • www.{BLOCKED}ush.com
  • www.{BLOCKED}rdpkg.com
  • {BLOCKED}roup.com
  • {BLOCKED}to-sr.com
  • {BLOCKED}ash.com
  • {BLOCKED}nc.com
  • {BLOCKED}rbatului.ro

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

10.427.50

FIRST VSAPI PATTERN DATE:

22 Nov 2013

VSAPI OPR PATTERN File:

10.428.00

VSAPI OPR PATTERN Date:

23 Nov 2013

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Restart in Safe Mode

[ Learn More ]

Step 3

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry. Before you could do this, you must restart in Safe Mode. For instructions on how to do this, you may refer to this page If the preceding step requires you to restart in safe mode, you may proceed to edit the system registry.

 
  • In HKEY_CURRENT_USER\Software
    • WinRAR = ""

Step 4

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • hovynqoruhup = "%User Profile%\hovynqoruhup.exe"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion
    • hovynqoruhupzap = "{Random Hex Values}"

Step 5

Restore this modified registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
    • From: MaxUserPort = "65534"
      To: MaxUserPort = "{Default Value}"
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings
    • From: ProxyEnable = "1"
      To: ProxyEnable = "{Default Value}"

Step 6

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_MOSERAN.BMC. 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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