TROJ_CUTWAIL.JNE

 Analysis by: Jaime Benigno Reyes

 ALIASES:

Trojan.Smoaler (Symantec)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  TECHNICAL DETAILS

File Size:

163,840 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

20 Oct 2014

Installation

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

  • %User Profile%\xanacnuonixa.exe

(Note: %User Profile% is a user's profile folder, where it usually is C:\Documents and Settings\{user name} on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name} on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

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
xanacnuonixa = "%User Profile%\xanacnuonixa.exe"

Other System Modifications

This Trojan adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion
AppManagement = "{hex value}"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion
xanacnuonixazap = "{hex value}"

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}hotel.is
  • http://{BLOCKED}o.com
  • http://{BLOCKED}g.com
  • http://{BLOCKED}umich.org
  • http://{BLOCKED}f.com.au
  • http://{BLOCKED}ylabs.com
  • http://{BLOCKED}man.net
  • http://{BLOCKED}rea.com
  • http://{BLOCKED}f.de
  • http://{BLOCKED}-lit.com
  • http://{BLOCKED}om.ru
  • http://{BLOCKED}ijya.com
  • http://{BLOCKED}s-dek.com
  • http://{BLOCKED}debt.net
  • http://{BLOCKED}ko.ru
  • http://{BLOCKED}if.com
  • http://{BLOCKED}iteaz.com
  • http://{BLOCKED}uval.es
  • http://{BLOCKED}inne.ro
  • http://{BLOCKED}tains.org
  • http://{BLOCKED}dai.com
  • http://{BLOCKED}re.com
  • http://{BLOCKED}jp.com
  • http://{BLOCKED}amhop.com
  • http://{BLOCKED}.cz
  • http://{BLOCKED}s.com.au
  • http://{BLOCKED}ets.com
  • http://{BLOCKED}tz.org
  • http://{BLOCKED}igal.com
  • http://{BLOCKED}page.com
  • http://{BLOCKED}dra.co.za
  • http://{BLOCKED}ih.com.tr
  • http://{BLOCKED}m30ty.com
  • http://{BLOCKED}fprop.com
  • http://{BLOCKED}akume.com
  • http://{BLOCKED}mail.com
  • http://{BLOCKED}feter.com
  • http://{BLOCKED}inc.com
  • http://{BLOCKED}se.ch
  • http://{BLOCKED}j.org
  • http://{BLOCKED}com.it
  • http://{BLOCKED}ed.org
  • http://{BLOCKED}orhard.pt
  • http://{BLOCKED}erdisc.de
  • http://{BLOCKED}sabia.com
  • http://{BLOCKED}ome.net
  • http://{BLOCKED}ogaku.com
  • http://{BLOCKED}osin.com
  • http://{BLOCKED}icr.com
  • http://{BLOCKED}2.com
  • http://{BLOCKED}vtam.com
  • http://{BLOCKED}tron.com
  • http://{BLOCKED}iatan.pl
  • http://{BLOCKED}a.org.au
  • http://{BLOCKED}com.pt
  • http://{BLOCKED}kom.pl
  • http://{BLOCKED}swim.com
  • http://{BLOCKED}iates.com
  • http://{BLOCKED}fa.pt
  • http://{BLOCKED}l.co.uk
  • http://{BLOCKED}teux.fr
  • http://{BLOCKED}ic.us
  • http://{BLOCKED}-rlm.com
  • http://{BLOCKED}l.cc
  • http://{BLOCKED}die.com
  • http://{BLOCKED}iko7.com
  • http://{BLOCKED}olice.org
  • http://{BLOCKED}etals.com
  • http://{BLOCKED}hodo.net
  • http://{BLOCKED}kranj.com
  • http://{BLOCKED}si.net
  • http://{BLOCKED}i.net
  • http://{BLOCKED}s.org
  • http://{BLOCKED}c.com
  • http://{BLOCKED}eton.cz
  • http://{BLOCKED}ieserl.de
  • http://{BLOCKED}lf.org
  • http://{BLOCKED}nema.com
  • http://{BLOCKED}at.de
  • http://{BLOCKED}owest.com
  • http://{BLOCKED}men.co.jp
  • http://{BLOCKED}rmedia.pl
  • http://{BLOCKED}ic.co.uk
  • http://{BLOCKED}ara.net
  • http://{BLOCKED}lys.com
  • http://{BLOCKED}sindia.in
  • http://{BLOCKED}inex.hu
  • http://{BLOCKED}don.com
  • http://{BLOCKED}arc.com
  • http://{BLOCKED}mel.net
  • http://{BLOCKED}.com
  • http://{BLOCKED}.org.uk
  • http://{BLOCKED}tea.ru
  • http://{BLOCKED}ion.com

  SOLUTION

Minimum Scan Engine:

9.700

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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Restart in Safe Mode

[ Learn More ]

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
    • AppManagement = "{hex value}"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion
    • xanacnuonixazap = "{hex value}"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • xanacnuonixa = "%User Profile%\xanacnuonixa.exe"

Step 5

Scan your computer with your Trend Micro product to delete files detected as TROJ_CUTWAIL.JNE. 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.

Step 6

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