TROJ_WIGON.IC
TrojanDownloader:Win32/Cutwail.CB (Microsoft); Trojan-Downloader.Win32.Cutwail.vty (Kaspersky); Trojan.Win32.Wigon (Ikarus); Win32/Wigon.PH (ESET-NOD32);
Windows
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.
TECHNICAL DETAILS
96,512 bytes
EXE
Yes
29 Oct 2015
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 files:
- %User Profile%\besorxualezb.exe - copy of itself
(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
besorxualezb = "%User Profile%\besorxualezb.exe"
Other System Modifications
This Trojan adds the following registry keys:
HKEY_CURRENT_USER\Software\Cigswnyraacay
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Cigswnyraacay
Xadagygcunb = "{random hex values}"
HKEY_CURRENT_USER\Software\Cigswnyraacay
besorxualezbQelruzobxe = "{random hex values}"
Other Details
This Trojan connects to the following possibly malicious URL:
- http://www.{BLOCKED}ark.com/
- http://www.{BLOCKED}.cz/
- http://www.{BLOCKED}org/
- http://www.{BLOCKED}lock.com/
- http://www.{BLOCKED}book.net/
- http://www.{BLOCKED}era.com/
- http://www.{BLOCKED}g.com/
- http://www.{BLOCKED}ver3.com/
- http://www.{BLOCKED}.org/
- http://www.{BLOCKED}pak.com/
- http://www.{BLOCKED}esi.com/
- http://www.{BLOCKED}lhal.net/
- http://www.{BLOCKED}um.com/
- http://www.{BLOCKED}c.co.uk/
- http://www.{BLOCKED}e.com/
- http://www.{BLOCKED}.com/
- http://www.{BLOCKED}ssib.com/
- http://www.{BLOCKED}ols.fi/
- http://www.{BLOCKED}s.com/
- http://www.{BLOCKED}ig.com/
- http://www.{BLOCKED}al.com/
- http://www.{BLOCKED}elit.com/
- http://www.{BLOCKED}indu.com/
- http://www.{BLOCKED}i.pl/
- http://www.{BLOCKED}4all.nl/
- http://www.{BLOCKED}.net/
- http://www.{BLOCKED}voy.com/
- http://www.{BLOCKED}com/
- http://www.{BLOCKED}om.es/
- http://www.{BLOCKED}nc.org/
- http://www.{BLOCKED}ksut.com/
- http://www.{BLOCKED}iskor.kz/
- http://{BLOCKED}.com/
- http://{BLOCKED}hui.net/
- http://{BLOCKED}i.com/
- http://{BLOCKED}t.org/
- http://{BLOCKED}ll.com/
- http://{BLOCKED}p15.net/
- http://{BLOCKED}uksut.com/
- http://{BLOCKED}seil.com/
- http://{BLOCKED}raha.cz/
- http://{BLOCKED}88.com/
- http://{BLOCKED}spel.com/
- http://{BLOCKED}org.eg/
- http://{BLOCKED}loc.com/
- http://{BLOCKED}sa.net/
- http://{BLOCKED}atex.com/
- http://{BLOCKED}os-sa.gr/
- http://{BLOCKED}co.id/
- http://{BLOCKED}pope.biz/
- http://{BLOCKED}inox.es/
- http://{BLOCKED}e.com/
- http://{BLOCKED}ifor.com/
- http://{BLOCKED}.at/
- http://{BLOCKED}ph.org/
- http://{BLOCKED}ko.net/
- http://{BLOCKED}x.com/
- http://{BLOCKED}.org.au/
- http://{BLOCKED}hun.com/
- http://{BLOCKED}uk.org/
- http://{BLOCKED}-sk.ca/
- http://{BLOCKED}com.sa/
- http://{BLOCKED}win.com/
- http://{BLOCKED}.hu/
- http://{BLOCKED}.ws/
- http://{BLOCKED}ari.com/
- http://{BLOCKED}tyle.com/
- http://{BLOCKED}in.com/
- http://{BLOCKED}e.org/
- http://{BLOCKED}do.com/
- http://{BLOCKED}inst.com/
- http://{BLOCKED}t.com.tw/
- http://{BLOCKED}.com.ph/
- http://{BLOCKED}tner.ru/
- http://{BLOCKED}sil.com/
- http://{BLOCKED}ore.com/
- http://{BLOCKED}lfix.com/
- http://{BLOCKED}en.com/
- http://{BLOCKED}i.org/
- http://{BLOCKED}inc.com/
- http://{BLOCKED}o.ru/
- http://{BLOCKED}sc.com/
- http://{BLOCKED}rden.com/
- http://{BLOCKED}ma.com/
- http://{BLOCKED}edit.fr/
- http://{BLOCKED}b.com/
- http://{BLOCKED}roup.com/
- http://{BLOCKED}down.com/
- http://{BLOCKED}l.org/
- http://{BLOCKED}onir.com/
- http://{BLOCKED}o.com/
- http://{BLOCKED}oviny.cz/
- http://{BLOCKED}jog.net/
- http://{BLOCKED}ars.com/
- http://{BLOCKED}.de/
- http://{BLOCKED}cz/
- http://{BLOCKED}set.net/
- http://{BLOCKED}ita.net/
- http://{BLOCKED}gen.com/
- http://{BLOCKED}i.com/
- http://{BLOCKED}ke.net/
- http://{BLOCKED}-ews.com/
- http://{BLOCKED}in.net/
- http://{BLOCKED}30ty.com/
- http://{BLOCKED}at.com/
- http://{BLOCKED}bile.com/
- http://{BLOCKED}eo.com/
- http://{BLOCKED}g.com/
- http://{BLOCKED}jp.com/
- http://{BLOCKED}.com/
- http://{BLOCKED}l.com/
- http://{BLOCKED}wcc.com/
- http://{BLOCKED}rat.com/
- http://{BLOCKED}ozo.ru/
- http://{BLOCKED}-l.com/
- http://{BLOCKED}h-me.com/
- http://{BLOCKED}att.com/
- http://{BLOCKED}els.com/
- http://{BLOCKED}-ai.com/
- http://{BLOCKED}host.com/
- http://{BLOCKED}net.com/
- http://{BLOCKED}tech.pl/
- http://{BLOCKED}ctus.pl/
- http://{BLOCKED}.org/
- http://{BLOCKED}an.com/
- http://{BLOCKED}lyon.org/
- http://{BLOCKED}s.com/
- http://{BLOCKED}-gr.ch/
- http://{BLOCKED}kko.com/
- http://{BLOCKED}el.com/
- http://{BLOCKED}tal.at/
- http://{BLOCKED}la.fr/
- http://{BLOCKED}y.com.pl/
- http://{BLOCKED}am.com/
- http://{BLOCKED}aiba.com/
- http://{BLOCKED}t.net/
- http://{BLOCKED}.net/
- http://{BLOCKED}ergo.ru/
- http://{BLOCKED}den.com/
- http://{BLOCKED}avto.ru/
- http://{BLOCKED}nara.com/
- http://{BLOCKED}c.com/
- http://{BLOCKED}ngds.com/
- http://{BLOCKED}c.co.uk/
- http://{BLOCKED}el.co.jp/
- http://{BLOCKED}r.com/
- http://{BLOCKED}a.cz/
- http://{BLOCKED}memo.com/
- http://{BLOCKED}urope.nl/
- http://{BLOCKED}iana.org/
- http://{BLOCKED}p.com/
- http://{BLOCKED}sh3.com/
- http://{BLOCKED}han.com/
- http://{BLOCKED}pas.com/
- http://{BLOCKED}opp.net/
- http://{BLOCKED}lock.com/
- http://{BLOCKED}wis.com/
- http://{BLOCKED}.co.uk/
- http://{BLOCKED}le.pl/
- http://{BLOCKED}linx.org/
- http://{BLOCKED}esse.be/
- http://{BLOCKED}s.ru/
- http://{BLOCKED}.com/
- http://{BLOCKED}at.com/
- http://{BLOCKED}h.ca/
- http://{BLOCKED}himo.com/
- http://{BLOCKED}da.com/
- http://{BLOCKED}ranj.com/
- http://{BLOCKED}r.org/
- http://{BLOCKED}.net/
- http://{BLOCKED}ys.co.uk/
- http://{BLOCKED}.com/
- http://{BLOCKED}ex.com/
- http://{BLOCKED}ke.ua/
- http://{BLOCKED}ook.com/
- http://{BLOCKED}occd.org/
- http://{BLOCKED}ich.de/
- http://{BLOCKED}iga.com/
- http://{BLOCKED}rector.gvt1.com/edgedl/chrome/win/46.0.2490.80_45.0.2454.99_chrome_updater.exe
- http://{BLOCKED}ntl.org/
- http://{BLOCKED}ldia.net/
- http://{BLOCKED}.org/
- http://{BLOCKED}er.de/
- http://{BLOCKED}ron.com/
- http://{BLOCKED}sey.com/
- http://{BLOCKED}e.com/
- http://{BLOCKED}com/
- http://{BLOCKED}v.ro/
- http://{BLOCKED}otek.net/
- http://{BLOCKED}tel.com/
- http://{BLOCKED}k.com/
- http://{BLOCKED}home.pl/
- http://{BLOCKED}ks.co.uk/
- http://{BLOCKED}hgts.net/
- http://{BLOCKED}fit.com/
- http://{BLOCKED}er.com/
- http://{BLOCKED}tas.com/
- http://{BLOCKED}eble.com/
- http://{BLOCKED}m.ru/
- http://{BLOCKED}path.com/
- http://{BLOCKED}tar.com/
- http://{BLOCKED}gann.com/
- http://{BLOCKED}w.com/
- http://{BLOCKED}.ru/
- http://{BLOCKED}earl.com/
- http://{BLOCKED}sport.ru/
- http://{BLOCKED}it/
- http://{BLOCKED}izer.com/
- http://{BLOCKED}wan.net/
- http://{BLOCKED}ikan.com/
- http://{BLOCKED}les.net/
- http://{BLOCKED}ugus.nl/
- http://{BLOCKED}ark.org/
- http://{BLOCKED}ssen.net/
- http://{BLOCKED}oil.com/
- http://{BLOCKED}hfam.ca/
- http://{BLOCKED}do.net/
- http://{BLOCKED}hin.com/
- http://{BLOCKED}.edu.ag/
- http://{BLOCKED}bax.org/
- http://{BLOCKED}r.am/
- http://{BLOCKED}us.jp/
- http://{BLOCKED}i.it/
- http://{BLOCKED}ig.com/
- http://{BLOCKED}r.com/
- http://{BLOCKED}elit.com/
- http://{BLOCKED}erty.com/
- http://{BLOCKED}ndia.com/
- http://{BLOCKED}stay.com/
- http://{BLOCKED}a.com/
- http://{BLOCKED}apc.net/
- http://{BLOCKED}york.com/
- http://{BLOCKED}vant.com/
- http://{BLOCKED}ays.com/
- http://{BLOCKED}.org/
- http://{BLOCKED}fkran.de/
- http://{BLOCKED}plus.hu/
- http://www.{BLOCKED}chi.net/
- http://www.{BLOCKED}nt.com/
- http://www.{BLOCKED}t.pl/
- http://www.{BLOCKED}.com/
- http://www.{BLOCKED}a.com/
- http://www.{BLOCKED}or.cl/
- http://www.{BLOCKED}aku.com/
- http://www.{BLOCKED}.com/
- http://www.{BLOCKED}cpa.com/
- http://www.{BLOCKED}coko.com/
- http://www.{BLOCKED}sit.com/
- http://www.{BLOCKED}i.org/
- http://www.{BLOCKED}o.edu.pl/
- http://www.{BLOCKED}o.com/
- http://www.{BLOCKED}lo.com/
- http://www.{BLOCKED}a.com/
- http://www.{BLOCKED}n.com/
- http://www.{BLOCKED}art.hu/
- http://www.{BLOCKED}o.si/
- http://www.{BLOCKED}a.com/
- http://www.{BLOCKED}live.com/
- http://www.{BLOCKED}vt.org/
- http://www.{BLOCKED}auer.de/
- http://www.{BLOCKED}bc.com/
- http://www.{BLOCKED}.com/
- http://www.{BLOCKED}s.org/
- http://www.{BLOCKED}us/
- http://www.{BLOCKED}at.com/
- http://www.{BLOCKED}ink.com/
- http://www.{BLOCKED}net/
- http://www.{BLOCKED}er.hu/
- http://www.{BLOCKED}irt.com/
- http://www.{BLOCKED}-pr.com/
- http://www.{BLOCKED}mfg.com/
- http://www.{BLOCKED}sk.com/
- http://www.{BLOCKED}o.co.uk/
- http://www.{BLOCKED}.net/
- http://www.{BLOCKED}o-me.com/
- http://www.{BLOCKED}safe.com/
- http://www.{BLOCKED}.net/
- http://www.{BLOCKED}k.com/
- http://www.{BLOCKED}raxx.com/
- http://www.{BLOCKED}us.si/
- http://www.{BLOCKED}lnic.net/
- http://www.{BLOCKED}com.br/
- http://www.{BLOCKED}pcb.com/
- http://www.{BLOCKED}-a.com/
- http://www.{BLOCKED}pak.nl/
- http://www.{BLOCKED}r.com/
- http://www.{BLOCKED}.com/
- http://www.{BLOCKED}mira.com/
- http://www.{BLOCKED}s.com/
- http://www.{BLOCKED}ito.com/
- http://www.{BLOCKED}ecnet.jp/
- http://www.{BLOCKED}a.com/
- http://www.{BLOCKED}spm.com/
- http://www.{BLOCKED}orts.ca/
- http://www.{BLOCKED}ames.com/
- http://www.{BLOCKED}ate.com/
- http://www.{BLOCKED}omes.com/
- http://www.{BLOCKED}fan.com/
- http://www.{BLOCKED}o4b.com/
- http://www.{BLOCKED}food.com/
SOLUTION
9.800
12.118.04
29 Oct 2015
12.119.00
30 Oct 2015
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
Step 4
Delete this registry value
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
- besorxualezb = "%User Profile%\besorxualezb.exe"
- besorxualezb = "%User Profile%\besorxualezb.exe"
- In HKEY_CURRENT_USER\Software\Cigswnyraacay
- Xadagygcunb = "{random hex values}"
- Xadagygcunb = "{random hex values}"
- In HKEY_CURRENT_USER\Software\Cigswnyraacay
- besorxualezbQelruzobxe = "{random hex values}"
- besorxualezbQelruzobxe = "{random hex values}"
Step 5
Delete this registry key
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
- Cigswnyraacay
- Cigswnyraacay
Step 6
Search and delete this file
- %User Profile%\besorxualezb.exe
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_WIGON.IC. 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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