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Trojan.DownLoader25.4853

Added to the Dr.Web virus database: 2017-07-03

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'GFJFFJMCIHKAKDC' = '%WINDIR%\c4j05p.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Chrome Updater' = '%APPDATA%\Google Chrome Updater.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'DCFIPOJILKNAHCN' = '%HOMEPATH%\Desktop\_drugs.txt'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'NADGBAPKFIPCBAP' = '%APPDATA%\0wnzxm.exe'
Creates the following services:
  • [<HKLM>\SYSTEM\ControlSet001\Services\Gavnoclubs] 'ImagePath' = '<SYSTEM32>\humt32.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Maverikeblos] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Hoobifunai] 'ImagePath' = '%WINDIR%\system\lsass.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Gavnoclubs] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Shvabiaungo] 'ImagePath' = '%WINDIR%\antigoichi.txt.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Musteryousancha] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Maverikeblos] 'ImagePath' = '<SYSTEM32>\vorku.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Shvabiaungo] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Hoobifunai] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Qasaibumers] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Qasaibumers] 'ImagePath' = '%WINDIR%\csrss.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Ucratuns] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Ucratuns] 'ImagePath' = '%WINDIR%\lsass.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Overloadslabs] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Overloadslabs] 'ImagePath' = '%WINDIR%\loadlabs.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\SambacoreDrives] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\SambacoreDrives] 'ImagePath' = '%WINDIR%\system\csrss.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\redofanctlgums] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\redofanctlgums] 'ImagePath' = '%WINDIR%\mhdslp.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\xerushione] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\xerushione] 'ImagePath' = '%WINDIR%\iesetup.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\mainfongesurp] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\mainfongesurp] 'ImagePath' = '%WINDIR%\qoasih86.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\twingyrdream] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\twingyrdream] 'ImagePath' = '%WINDIR%\worksn32.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\litematriuq] 'ImagePath' = '<SYSTEM32>.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Ooopsuites] 'ImagePath' = '%WINDIR%\system\faizer.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Shonomalayzeki] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Musteryousancha] 'ImagePath' = '<SYSTEM32>\micro.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Ooopsuites] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Waifiunger] 'ImagePath' = '%WINDIR%\system\isiss.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\litematriuq] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Shonomalayzeki] 'ImagePath' = '%WINDIR%\winzulp.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Waifiunger] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\winheal] 'ImagePath' = '%WINDIR%\help\explorer.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Battlerian] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Lybachkazik] 'ImagePath' = '%WINDIR%\smsd.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\winheal] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Handegrounep] 'ImagePath' = '<SYSTEM32>\subaru.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Varlocknuss] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Battlerian] 'ImagePath' = '%WINDIR%\system\nores.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Handegrounep] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Lybachkazik] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\VesternHuolack] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\VesternHuolack] 'ImagePath' = '%WINDIR%\ausmldh.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\CusonageLkip3vb] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\CusonageLkip3vb] 'ImagePath' = '%WINDIR%\sellmind.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\shannenziy] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\shannenziy] 'ImagePath' = '%WINDIR%\silkex.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\limuaquadfer] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\limuaquadfer] 'ImagePath' = '%WINDIR%\quazv.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\whulmechavni] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\whulmechavni] 'ImagePath' = '%WINDIR%\system\sop.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Tuftagolik] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Tuftagolik] 'ImagePath' = '%WINDIR%\system\mail.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Raitaifaboss] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Raitaifaboss] 'ImagePath' = '%WINDIR%\system\winlogon.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\SatisfilmOnaca] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\SatisfilmOnaca] 'ImagePath' = '%WINDIR%\win32drv.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\SipressGavnoss] 'ImagePath' = '%WINDIR%\system\smss.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Kalinakrasnay] 'ImagePath' = '<SYSTEM32>\yebachau.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Farkaliansin] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Varlocknuss] 'ImagePath' = '<SYSTEM32>\rotfinkl.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Kalinakrasnay] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\ValiantsTrei32] 'ImagePath' = '%WINDIR%\smss.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\SipressGavnoss] 'Start' = '00000002'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Farkaliansin] 'ImagePath' = '<SYSTEM32>\mamzell.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\ValiantsTrei32] 'Start' = '00000002'
Malicious functions:
Creates and executes the following:
  • '%TEMP%\c3bx94.exe'
  • '%WINDIR%\c4j05p.exe'
  • '%TEMP%\b2cxog.exe'
  • '%APPDATA%\0wnzxm.exe'
  • '%TEMP%\a1fsdk.exe'
Executes the following:
  • '%WINDIR%\win32drv.exe'
  • '%WINDIR%\lsass.exe'
  • '%TEMP%\l1jv18.exe'
  • '%TEMP%\l2e5bo.exe'
  • '%TEMP%\l4yim7.exe'
  • '%TEMP%\l5o3pc.exe'
  • '%TEMP%\l3nt8k.exe'
  • '%WINDIR%\csrss.exe'
  • '%WINDIR%\system\winlogon.exe'
  • '%TEMP%\i9k3li.exe'
  • '%WINDIR%\smss.exe'
  • '%TEMP%\zi4f89.exe'
  • '<SYSTEM32>\cmd.exe' /c del "%TEMP%\c3bx94.exe" >> NUL
  • '%TEMP%\l0s13p.exe'
  • '%APPDATA%\Google Chrome Updater.exe'
  • '%TEMP%\jxb9t2.exe'
  • '%WINDIR%\system\sop.exe'
  • '%WINDIR%\system\isiss.exe'
  • '<SYSTEM32>.exe'
  • '%WINDIR%\system\faizer.exe'
  • '%WINDIR%\winzulp.exe'
  • '%WINDIR%\worksn32.exe'
  • '%WINDIR%\qoasih86.exe'
  • '%WINDIR%\mhdslp.exe'
  • '%WINDIR%\iesetup.exe'
  • '<SYSTEM32>\micro.exe'
  • '%TEMP%\l6z98r.exe'
  • '%TEMP%\l7c43x.exe'
  • '%WINDIR%\system\lsass.exe'
  • '%WINDIR%\system\csrss.exe'
  • '%WINDIR%\antigoichi.txt.exe'
  • '<SYSTEM32>\humt32.exe'
  • '%WINDIR%\loadlabs.exe'
  • '<SYSTEM32>\vorku.exe'
  • '%WINDIR%\system\smss.exe'
  • '%WINDIR%\Help\explorer.exe'
  • '%TEMP%\i3p74g.exe'
  • '%TEMP%\i2xen6.exe'
  • '%WINDIR%\smsd.exe'
  • '%TEMP%\bu45bm.exe'
  • '%TEMP%\i4ch6d.exe'
  • '%TEMP%\ao9jek.exe'
  • '%WINDIR%\silkex.exe'
  • '%WINDIR%\quazv.exe'
  • '%TEMP%\d1y8h9.exe'
  • '%TEMP%\d2po5w.exe'
  • '<SYSTEM32>\notepad.exe' %HOMEPATH%\Desktop\_drugs.txt
  • '%WINDIR%\sellmind.exe'
  • '%TEMP%\i0ve7b.exe'
  • '%TEMP%\i1bau3.exe'
  • '%TEMP%\d3ls67.exe'
  • '%WINDIR%\ausmldh.exe'
  • '%TEMP%\i7y1bz.exe'
  • '%TEMP%\hb7vt1.exe'
  • '%TEMP%\f0li43.exe'
  • '%TEMP%\g5ndq2.exe'
  • '%TEMP%\iu37cs.exe'
  • '%TEMP%\i8ra9f.exe'
  • '<SYSTEM32>\mamzell.exe'
  • '%WINDIR%\system\mail.exe'
  • '%TEMP%\i6o83n.exe'
  • '<SYSTEM32>\subaru.exe'
  • '%TEMP%\dar57n.exe'
  • '%WINDIR%\system\nores.exe'
  • '%TEMP%\c6f7hl.exe'
  • '%TEMP%\e3hr64.exe'
  • '<SYSTEM32>\yebachau.exe'
  • '%TEMP%\i5ubas.exe'
  • '<SYSTEM32>\rotfinkl.exe'
Modifies file system:
Creates the following files:
  • %WINDIR%\csrss.exe
  • %TEMP%\zi4f89.exe
  • <SYSTEM32>\humt32.exe
  • %WINDIR%\system\csrss.exe
  • %TEMP%\i9k3li.exe
  • <SYSTEM32>\vorku.exe
  • %TEMP%\jxb9t2.exe
  • %WINDIR%\loadlabs.exe
  • %WINDIR%\system\lsass.exe
  • %TEMP%\g5ndq2.exe
  • %WINDIR%\lsass.exe
  • %WINDIR%\system\sop.exe
  • %TEMP%\i7y1bz.exe
  • %WINDIR%\win32drv.exe
  • %TEMP%\i8ra9f.exe
  • %TEMP%\iu37cs.exe
  • %WINDIR%\system\winlogon.exe
  • %TEMP%\hb7vt1.exe
  • %APPDATA%\Google Chrome Updater.exe
  • %TEMP%\l5o3pc.exe
  • %TEMP%\l6z98r.exe
  • %TEMP%\l4yim7.exe
  • %WINDIR%\winzulp.exe
  • <SYSTEM32>.exe
  • %WINDIR%\worksn32.exe
  • %WINDIR%\qoasih86.exe
  • %WINDIR%\iesetup.exe
  • %TEMP%\l7c43x.exe
  • %WINDIR%\system\isiss.exe
  • %TEMP%\l1jv18.exe
  • %WINDIR%\antigoichi.txt.exe
  • %TEMP%\l0s13p.exe
  • <SYSTEM32>\micro.exe
  • %TEMP%\l3nt8k.exe
  • %WINDIR%\mhdslp.exe
  • %TEMP%\l2e5bo.exe
  • %WINDIR%\system\faizer.exe
  • %WINDIR%\quazv.exe
  • %TEMP%\d3ls67.exe
  • %TEMP%\d2po5w.exe
  • %TEMP%\ao9jek.exe
  • %TEMP%\i0ve7b.exe
  • %WINDIR%\silkex.exe
  • %TEMP%\i1bau3.exe
  • C:\Documents and Settings\LocalService\Local Settings\Application Data\sLT.exf
  • %WINDIR%\Help\explorer.exe
  • %TEMP%\a1fsdk.exe
  • %TEMP%\b2cxog.exe
  • %HOMEPATH%\Desktop\_drugs.txt
  • %APPDATA%\0wnzxm.exe
  • %TEMP%\c3bx94.exe
  • %WINDIR%\sellmind.exe
  • %WINDIR%\ausmldh.exe
  • %TEMP%\d1y8h9.exe
  • %WINDIR%\c4j05p.exe
  • %TEMP%\i2xen6.exe
  • %WINDIR%\system\mail.exe
  • %WINDIR%\smss.exe
  • %TEMP%\i5ubas.exe
  • %TEMP%\dar57n.exe
  • <SYSTEM32>\mamzell.exe
  • %WINDIR%\system\smss.exe
  • %TEMP%\f0li43.exe
  • %TEMP%\e3hr64.exe
  • %TEMP%\i6o83n.exe
  • <SYSTEM32>\subaru.exe
  • %TEMP%\i4ch6d.exe
  • %WINDIR%\smsd.exe
  • %TEMP%\i3p74g.exe
  • %TEMP%\bu45bm.exe
  • <SYSTEM32>\yebachau.exe
  • %TEMP%\c6f7hl.exe
  • %WINDIR%\system\nores.exe
  • <SYSTEM32>\rotfinkl.exe
Sets the 'hidden' attribute to the following files:
  • %TEMP%\c3bx94.exe
  • %WINDIR%\c4j05p.exe
  • %TEMP%\b2cxog.exe
  • %APPDATA%\0wnzxm.exe
  • %TEMP%\a1fsdk.exe
Network activity:
Connects to:
  • '17#.#1.181.25':22
  • '21#.#16.128.27':80
  • '17#.#3.33.40':80
  • '21#.#2.42.10':80
  • '90.##1.124.57':80
  • '21#.#24.121.208':80
  • '37.##0.227.133':80
  • '19#.#16.98.126':80
  • '37.##8.207.75':80
  • '17#.#3.33.40':8000
  • 'al##ds2.eu':80
  • '21#.#17.175.4':80
  • '31.##0.165.158':80
  • '37.##8.207.1':80
  • '31.##0.160.109':80
  • '19#.#45.209.145':80
TCP:
HTTP GET requests:
  • http://37.##0.227.133/
  • http://21#.#16.128.27/
  • http://21#.#2.42.10/
  • http://21#.#24.121.208/
  • http://90.##1.124.57/
  • http://19#.#16.98.126/
  • http://17#.#3.33.40/
  • http://31.##0.165.158/
  • http://37.##8.207.75/
  • http://19#.#45.209.145/
  • http://31.##0.160.109/
  • http://21#.#17.175.4/
  • http://37.##8.207.1/
HTTP POST requests:
  • http://al##ds2.eu/
UDP:
  • DNS ASK ec###l.co.uk
  • DNS ASK nz##l.com
  • DNS ASK fo###.antichat.ru
  • DNS ASK bi###fast.com
  • DNS ASK fa##vps.ru
  • DNS ASK www.if##.gov.bz
  • DNS ASK www.cr##lub.ws
  • DNS ASK www.go##u.co
  • DNS ASK go##u.co
  • DNS ASK www.nz##l.com
  • DNS ASK dd####ttack.info
  • DNS ASK fr###hessko.top
  • DNS ASK bo####idalavo.ru
  • DNS ASK www.xn#######abij1apmyipn.xn--p1ai
  • DNS ASK cr##lub.ws
  • DNS ASK in##aft.ru
  • DNS ASK vy###a-host.ru
  • DNS ASK wp#d
  • DNS ASK dd###service.ws
  • DNS ASK sh###orld.biz
  • DNS ASK www.dd####ttack.info
  • DNS ASK www.pr##4u.net
  • DNS ASK ha#.#llods2.eu
  • DNS ASK pr##4u.com
  • DNS ASK www.bo####idalavo.ru
  • DNS ASK ku##ress.ru
  • DNS ASK or##ote.biz
  • DNS ASK al##ds2.eu
  • DNS ASK a2.##craft.ru
  • DNS ASK al##ds2.net
  • DNS ASK dc.##lia.com
  • DNS ASK www.za##biz.com
  • DNS ASK www.fx##0.com
  • DNS ASK al###m.bget.ru
  • DNS ASK ov###oadlab.com
  • DNS ASK www.ge.tt
  • DNS ASK www.sh###orld.biz
  • DNS ASK xn#######abij1apmyipn.xn--p1ai
  • DNS ASK www.ku##ress.ru
  • DNS ASK www.dd###service.ws
  • DNS ASK www.l3##s.org
  • '90.##6.201.51':80
  • '22#.#3.34.129':80
  • '21#.#12.6.36':88
  • '87.##2.67.15':80

Curing recommendations

  1. 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.
  2. 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.
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  1. 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.
  2. 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.

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