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Trojan.Siggen2.38513
Added to the Dr.Web virus database:
2011-06-03
Virus description added:
2013-12-03
Technical Information
Malicious functions:
Creates and executes the following:
'<SYSTEM32>\freshdesk.exe'
'%TEMP%\is-1ICBV.tmp\<Virus name>.tmp' /SL5="$30092,109284,51712,<Full path to virus>"
Modifies file system :
Creates the following files:
%HOMEPATH%\Favorites\is-3OGI6.tmp
%HOMEPATH%\Favorites\is-EBRDD.tmp
%HOMEPATH%\Favorites\is-M92R9.tmp
%HOMEPATH%\Favorites\is-A44FA.tmp
%HOMEPATH%\Favorites\is-RB7T9.tmp
%HOMEPATH%\Favorites\is-98MS9.tmp
%HOMEPATH%\Favorites\is-G1082.tmp
%HOMEPATH%\Favorites\is-RFC54.tmp
%HOMEPATH%\Favorites\is-MI2PH.tmp
%HOMEPATH%\Favorites\is-9Q8QB.tmp
%HOMEPATH%\Favorites\is-BLACI.tmp
%HOMEPATH%\Favorites\is-7A9HI.tmp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\1[1]
%HOMEPATH%\Favorites\is-8JBSK.tmp
%HOMEPATH%\Favorites\is-LI3H7.tmp
%HOMEPATH%\Favorites\is-2LL5V.tmp
%HOMEPATH%\Favorites\is-CCVNS.tmp
%HOMEPATH%\Favorites\is-QR5VP.tmp
<SYSTEM32>\is-RUOUB.tmp
<SYSTEM32>\is-FVONC.tmp
%APPDATA%\Microsoft\Internet Explorer\Quick Launch\is-CDFCB.tmp
%APPDATA%\Microsoft\Internet Explorer\Quick Launch\is-7J3FF.tmp
<SYSTEM32>\is-D1IB1.tmp
%TEMP%\is-L7Q1E.tmp\_isetup\_RegDLL.tmp
%TEMP%\is-1ICBV.tmp\<Virus name>.tmp
<SYSTEM32>\is-F803Q.tmp
%TEMP%\is-L7Q1E.tmp\_isetup\_shfoldr.dll
%APPDATA%\Microsoft\Internet Explorer\Quick Launch\is-C870V.tmp
%HOMEPATH%\Favorites\is-6E967.tmp
%HOMEPATH%\Desktop\is-KDD1R.tmp
%HOMEPATH%\Favorites\is-7S7VS.tmp
%HOMEPATH%\Favorites\is-NSPO9.tmp
%HOMEPATH%\Desktop\is-GFT0R.tmp
%HOMEPATH%\Desktop\is-TONKT.tmp
%HOMEPATH%\Desktop\is-MCHT8.tmp
%HOMEPATH%\Desktop\is-EUEEM.tmp
%HOMEPATH%\Desktop\is-7O8UG.tmp
Deletes the following files:
%TEMP%\is-L7Q1E.tmp\_isetup\_shfoldr.dll
%TEMP%\is-1ICBV.tmp\<Virus name>.tmp
%TEMP%\~DF7DD0.tmp
%TEMP%\is-L7Q1E.tmp\_isetup\_RegDLL.tmp
Moves the following files:
from %HOMEPATH%\Favorites\is-3OGI6.tmp to %HOMEPATH%\Favorites\Д§ѕ§»ГПл.url
from %HOMEPATH%\Favorites\is-EBRDD.tmp to %HOMEPATH%\Favorites\ИэК®БщјЖ.url
from %HOMEPATH%\Favorites\is-M92R9.tmp to %HOMEPATH%\Favorites\МФ±¦ХэЖ·ЙМіЗ.url
from %HOMEPATH%\Favorites\is-A44FA.tmp to %HOMEPATH%\Favorites\МФ±¦ИИВф.url
from %HOMEPATH%\Favorites\is-MI2PH.tmp to %HOMEPATH%\Favorites\УўРЫЦ®іЗ.url
from %HOMEPATH%\Favorites\is-98MS9.tmp to %HOMEPATH%\Favorites\·вЙсОЮµР.url
from %HOMEPATH%\Favorites\is-RB7T9.tmp to %HOMEPATH%\Favorites\ЙМТµґуєа.url
from %HOMEPATH%\Favorites\is-RFC54.tmp to %HOMEPATH%\Favorites\ЕМБъЙсД№.url
from %HOMEPATH%\Favorites\is-8JBSK.tmp to %HOMEPATH%\Favorites\МФ±¦КОЖ·Р¬°ь.url
from %HOMEPATH%\Favorites\is-CCVNS.tmp to %HOMEPATH%\Favorites\МФ±¦ГАИЭЖµµА.url
from %HOMEPATH%\Favorites\is-BLACI.tmp to %HOMEPATH%\Favorites\9u7УОП·Нш.url
from %HOMEPATH%\Favorites\is-7A9HI.tmp to %HOMEPATH%\Favorites\МФ±¦ИИВф·зФЖ°с.url
from %HOMEPATH%\Favorites\is-2LL5V.tmp to %HOMEPATH%\Favorites\МФ±¦Е®ИЛЖµµА.url
from %HOMEPATH%\Favorites\is-9Q8QB.tmp to %HOMEPATH%\Favorites\МФ±¦µзЖчЖµµА.url
from %HOMEPATH%\Favorites\is-QR5VP.tmp to %HOMEPATH%\Favorites\МФ±¦КэВлЖµµА.url
from %HOMEPATH%\Favorites\is-LI3H7.tmp to %HOMEPATH%\Favorites\МФ±¦ДРИЛЖµµА.url
from %HOMEPATH%\Favorites\is-G1082.tmp to %HOMEPATH%\Favorites\Ж®ГмПЙЅЈ.url
from %APPDATA%\Microsoft\Internet Explorer\Quick Launch\is-CDFCB.tmp to %APPDATA%\Microsoft\Internet Explorer\Quick Launch\МФ±¦ИИВф.url
from %APPDATA%\Microsoft\Internet Explorer\Quick Launch\is-7J3FF.tmp to %APPDATA%\Microsoft\Internet Explorer\Quick Launch\Internet Explorer.lnk
from %HOMEPATH%\Desktop\is-MCHT8.tmp to %HOMEPATH%\Desktop\Internet Explorer.lnk
from %APPDATA%\Microsoft\Internet Explorer\Quick Launch\is-C870V.tmp to %APPDATA%\Microsoft\Internet Explorer\Quick Launch\9u7УОП·Нш.url
from <SYSTEM32>\is-D1IB1.tmp to <SYSTEM32>\9u7.ico
from <SYSTEM32>\is-F803Q.tmp to <SYSTEM32>\taobao.ico
from <SYSTEM32>\is-RUOUB.tmp to <SYSTEM32>\Internet Explorer.lnk
from <SYSTEM32>\is-FVONC.tmp to <SYSTEM32>\freshdesk.exe
from %HOMEPATH%\Favorites\is-6E967.tmp to %HOMEPATH%\Favorites\·ЙМмОчУО.url
from %HOMEPATH%\Desktop\is-KDD1R.tmp to %HOMEPATH%\Desktop\9u7УОП·Нш.url
from %HOMEPATH%\Favorites\is-7S7VS.tmp to %HOMEPATH%\Favorites\ГчіЇК±ґъ.url
from %HOMEPATH%\Favorites\is-NSPO9.tmp to %HOMEPATH%\Favorites\µЇµЇМГ.url
from %HOMEPATH%\Desktop\is-7O8UG.tmp to %HOMEPATH%\Desktop\МФ±¦ХэЖ·ЙМіЗ.url
from %HOMEPATH%\Desktop\is-TONKT.tmp to %HOMEPATH%\Desktop\МФ±¦ИИВф.url
from %HOMEPATH%\Desktop\is-GFT0R.tmp to %HOMEPATH%\Desktop\µгїЄјґНжЈ¬µЇµЇМГ.url
from %HOMEPATH%\Desktop\is-EUEEM.tmp to %HOMEPATH%\Desktop\·ЙМмОчУОЈ¬ЧўІбјґНж.url
Network activity:
Connects to:
'fr##.qq437.cn':80
'localhost':1036
TCP:
HTTP GET requests:
fr##.qq437.cn/1/?ci###########################
UDP:
Miscellaneous:
Searches for the following windows:
ClassName: 'IEFrame' WindowName: '(null)'
ClassName: '' WindowName: '(null)'
ClassName: 'MS_WebcheckMonitor' WindowName: '(null)'
ClassName: 'MS_AutodialMonitor' WindowName: '(null)'
ClassName: 'Progman' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
ClassName: 'SysListView32' WindowName: '(null)'
ClassName: 'SHELLDLL_DefView' WindowName: '(null)'
Curing recommendations
Windows
macOS
Linux
Android
If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space .
If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.
If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
Switch off your device and turn it on as normal.
Find out more about Dr.Web for Android
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