Trojan.SalityStub.F_3f68f43cfe

by malwarelabrobot on May 7th, 2016 in Malware Descriptions.

Trojan.Win32.Small.cox (Kaspersky), Trojan.SalityStub.F (B) (Emsisoft), Trojan.SalityStub.F (AdAware), Virus.Win32.Sality.FD, Virus.Win32.Sality.2.FD, VirusSality.YR, GenericAutorunWorm.YR, GenericInjector.YR (Lavasoft MAS)
Behaviour: Trojan, Worm, Virus, WormAutorun


The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

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Summary
Dynamic Analysis
Static Analysis
Network Activity
Map
Strings from Dumps
Removals

MD5: 3f68f43cfe3898062be106adb6c4aae7
SHA1: e7d3e2d409824960b452b759fd8146c4a8257c89
SHA256: 1a2d0f3aa245376fec08718e632f6e49d7f3d9cf0e6fbd616c97fd5214776bc8
SSDeep: 1536:eX/O97n75s5ud3zb1jYPYmJQVfFo368MFX3avAp GvM7SUEF4ZJ1s/7cP2:eX/O9775sI3zyg/fFsXMkvApS7TZJS/
Size: 99328 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2010-11-05 02:25:00
Analyzed on: WindowsXP SP3 32-bit


Summary:

Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Payload

Behaviour Description
WormAutorun A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan's file once a user opens a drive's folder in Windows Explorer.


Process activity

The Trojan creates the following process(es):
No processes have been created.
The Trojan injects its code into the following process(es):

%original file name%.exe:1156
Explorer.EXE:532

Mutexes

The following mutexes were created/opened:
No objects were found.

File activity

The process %original file name%.exe:1156 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%WinDir%\system.ini (70 bytes)
%Program Files%\Common Files\Adobe\ARM\1.0\AdobeARM.exe (12 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\winpyguie.exe (561 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\Reader_sl.exe (1336 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\btug.exe (561 bytes)
C:\yigot.exe (99 bytes)
C:\autorun.inf (313 bytes)
%Program Files%\Common Files\Java\Java Update\jusched.exe (272 bytes)
C:\totalcmd\TOTALCMD.EXE (854 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\winpyguie.exe (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\btug.exe (0 bytes)
%WinDir%\caffc (0 bytes)

Registry activity

The process %original file name%.exe:1156 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Security Center]
"UacDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda]
"m4_0" = "0"
"m3_1" = "1718420804"
"m3_0" = "17001001"
"m4_4" = "2646195636"
"m4_5" = "86519073"
"m3_5" = "69945096"

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DoNotAllowExceptions" = "0"

[HKCU\Software\Stvncyfrlda]
"m2_2" = "3470576471"
"m2_3" = "910908362"
"m2_0" = "5517"
"m2_1" = "1735293664"
"m2_6" = "1821804803"
"m4_2" = "3470581466"
"m2_4" = "2646190137"
"m2_5" = "86522028"

[HKCU\Software\Stvncyfrlda\168128873]
"1735290733" = "10"

[HKCU\Software\Stvncyfrlda]
"m3_3" = "927474798"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system]
"EnableLUA" = "0"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"GlobalUserOffline" = "0"

[HKCU\Software\Stvncyfrlda]
"m4_9" = "2732714709"
"m3_7" = "3573965266"
"m1_9" = "151879564"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\My Documents"

[HKCU\Software\Stvncyfrlda]
"m2_8" = "997420773"
"m3_6" = "1838544551"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Stvncyfrlda]
"m1_5" = "990974441"

[HKLM\SOFTWARE\Microsoft\Security Center]
"AntiVirusOverride" = "1"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"UpdatesDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda]
"m4_6" = "1821809806"
"m4_1" = "1735290733"
"m3_4" = "2629490589"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Stvncyfrlda]
"m3_2" = "3487544563"
"m1_4" = "2043211597"
"m1_7" = "2820037032"
"m1_6" = "942015960"

[HKLM\SOFTWARE\Microsoft\Security Center]
"FirewallOverride" = "1"

[HKCU\Software\Stvncyfrlda]
"m1_0" = "1431655765"
"m1_3" = "553799287"
"m1_2" = "2322242303"
"m1_1" = "692605188"

"m1_8" = "3256253133"
"m3_9" = "2749530364"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"UacDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda]
"m3_8" = "980422977"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"

[HKCU\Software\Stvncyfrlda\168128873]
"-824385830" = "0"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"Hidden" = "2"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"FirewallOverride" = "1"

[HKCU\Software\Stvncyfrlda\168128873]
"910904903" = "0"

[HKCU\Software\Stvncyfrlda]
"m2_7" = "3557105270"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKLM\SOFTWARE\Microsoft\Security Center]
"FirewallDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda\168128873]
"-1648771660" = "30"
"1821809806" = "0200687474703A2F2F7061647275702E636F6D2F736F62616B612E6173707800687474703A2F2F6B756B75312E696E666F696572"

[HKCU\Software\Stvncyfrlda]
"m4_7" = "3557100539"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "9D 5B A3 C7 8D E9 C3 33 5D 55 7A 74 51 53 6B D2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"

[HKCU\Software\Stvncyfrlda]
"m4_3" = "910904903"
"m2_9" = "2732719960"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"FirewallDisableNotify" = "1"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Stvncyfrlda\168128873]
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

[HKLM\SOFTWARE\Microsoft\Security Center]
"UpdatesDisableNotify" = "1"

[HKCU\Software\Stvncyfrlda\168128873]
"86519073" = "53"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"AntiVirusOverride" = "1"

[HKCU\Software\Stvncyfrlda]
"m4_8" = "997423976"

Firewall notifications are disabled:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DisableNotifications" = "1"

Antivirus notifications are disabled:

[HKLM\SOFTWARE\Microsoft\Security Center]
"AntiVirusDisableNotify" = "1"

Adds a rule to the firewall Windows which allows any network activity:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\c:]
"%original file name%.exe" = "c:\%original file name%.exe:*:Enabled:ipsec"

Antivirus notifications are disabled:

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"AntiVirusDisableNotify" = "1"

A firewall is disabled:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"EnableFirewall" = "0"

Dropped PE files

MD5 File path
0e877f86bf727218d9a921966fecc642 c:\yigot.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan's file once a user opens a drive's folder in Windows Explorer.

VersionInfo

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text 4096 69632 66048 5.53653 587520b59aeb3391f069a29e5b21cb53

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 748
0fd1d5b37f2181ebedd1e9470041a4bd
7557c6e39adbd55fdc0d6bf363ee5605
2e6d717bbe55a36bda43ff1436282980
7e2d1db9f08fc5d180c2825ba77a79e0
7e1b85110747aebeec43825bae93dce0
0815861a0c3c467ddfbdc2d4495531a7
e63fc293a650d310e06f54c5b455cd51
94881345994fb9dbd6494157bc41384b
0fc6b457f337f01ccce06a3e97f63973
37cac76c77cca91844f5da058e7457e5
41e0dec85ebe2c638468506dcaa40573
5c77015572a4e2e7563f8718d2411924
3bcf5fb37c19c89b1dc03e188fc9da8f
017a34c9b13968311c45cbc15008219b
84cbd587296c8a0a98ea0a32c8ef67c5
bfa3703f564fe409fab9ae790b4e2cc0
1449514417e7f823d062278a0ff23ada
756f17cae9cd8ca021de42cc5662da86
175db51703824ee7e48104db9ec1824d
b49ccb1192b981cf404e07f5f5e5318a
88a3fdd5144ba427529c437f8f373140
85f65d4e992c54ad20e0e0bb4749ba20
9d92f0977717e368d90e2f2d8e7cfd20
7f6649d18b0a0a7115e50869e7b61880
34216723a00a49e47d5f4fc7a84462e0

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

The Trojan connects to the servers at the folowing location(s):

%original file name%.exe_1156:

.text
KERNEL32.dll
SHELL32.DLL
ShellExecuteA
KERNEL32.DLL
%original file name%.exe
f68f43cfe3898062be106adb6c4aae7.exe
hXXp://padrup.com/sobaka.aspx
hXXp://kuku1.infoier
hXXp://89.11
.info/home.gifIh
bW.text
JKERNEL32.dll
%x.exe
h.rdla&
mH.MN8
T4.At%
S.twa
.klkjw:9fqwiBumW
.sysa
Zc.pBTa
~%s:*:yd:
.!.VF*
.d&?%x=
GUrlA'
"\'Web%w}
HTTP)s'PS
2GUARDCMD
o.ENHCDM
wWEBWUPD
MM.PF
%xn'[
>>?456789:;
!"#$%&'()* ,-./4
qn%CXf
UP*dB.PPd@.
%FoAN-x
ÄEW
%F" *" a
ADVAPI32.dll
MSVCRT.dll
SHELL32.dll
USER32.dll
WS2_32.dll
RegCloseKey
SHFileOperationA

%original file name%.exe_1156_rwx_00401000_00011000:

KERNEL32.dll
SHELL32.DLL
ShellExecuteA
KERNEL32.DLL
%original file name%.exe
.text
f68f43cfe3898062be106adb6c4aae7.exe
hXXp://padrup.com/sobaka.aspx
hXXp://kuku1.infoier
hXXp://89.11
.info/home.gifIh
bW.text
JKERNEL32.dll
%x.exe
h.rdla&
mH.MN8
T4.At%
S.twa
.klkjw:9fqwiBumW
.sysa
Zc.pBTa
~%s:*:yd:
.!.VF*
.d&?%x=
GUrlA'
"\'Web%w}
HTTP)s'PS
2GUARDCMD
o.ENHCDM
wWEBWUPD
MM.PF
%xn'[
>>?456789:;
!"#$%&'()* ,-./4
qn%CXf
UP*dB.PPd@.
%FoAN-x
ÄEW
%F" *" a
ADVAPI32.dll
MSVCRT.dll
SHELL32.dll
USER32.dll
WS2_32.dll
RegCloseKey
SHFileOperationA

%original file name%.exe_1156_rwx_00520000_010BA000:

hXXp://89.11
.info/home.gifIh
bW.text
JKERNEL32.dll
%x.exe
hXXp://89.119.67.154/testo5/
hXXp://kukutrustnet777.info/home.gif
hXXp://kukutrustnet888.info/home.gif
hXXp://kukutrustnet987.info/home.gif
.text
KERNEL32.dll
.reloc
USER32.dll
h.rdata
H.data
ntoskrnl.exe
Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 6.0)
Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\MuiCache
Software\Microsoft\Windows\CurrentVersion\Internet Settings
Software\Microsoft\Windows\CurrentVersion
hXXp://VVV.klkjwre9fqwieluoi.info/
hXXp://kukutrustnet777888.info/
Software\Microsoft\Windows\CurrentVersion\policies\system
Software\Microsoft\Windows\ShellNoRoam\MUICache
%s:*:Enabled:ipsec
SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced
GdiPlus.dll
hXXp://
ipfltdrv.sys
VVV.microsoft.com
?%x=%d
&%x=%d
SYSTEM.INI
USER32.DLL
.%c%s
\\.\amsint32
NTDLL.DLL
autorun.inf
ADVAPI32.DLL
win%s.exe
%s.exe
WININET.DLL
InternetOpenUrlA
avast! Web Scanner
Avira AntiVir Premium WebGuard
cmdGuard
cmdAgent
Eset HTTP Server
ProtoPort Firewall service
SpIDer FS Monitor for Windows NT
Symantec Password Validation
WebrootDesktopFirewallDataService
WebrootFirewall
%d%d.tmp
SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
%s\%s
%s\Software\Microsoft\Windows\CurrentVersion\Ext\Stats
Software\Microsoft\Windows\CurrentVersion\Ext\Stats
SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
KERNEL32.DLL
Explorer.exe
A2CMD.
ASHWEBSV.
AVGCC.AVGCHSVX.
DRWEB
DWEBLLIO
DWEBIO
FSGUIEXE.
MCVSSHLD.
NPFMSG.
SYMSPORT.
WEBSCANX.
%c%d_%d
purity_control_%x
.adata
M_%d_
?456789:;<=
!"#$%&'()* ,-./0123
mong%WinDir%\
%WinDir%\hywjfubtsnl.log
hXXp://padrup.com/sobaka.aspx
hXXp://kuku1.infoier
%System%\drivers\ojhik.sys
8315314107
SHELL32.DLL
ShellExecuteA
GetProcessHeap
GetWindowsDirectoryA
RegEnumKeyExA
RegDeleteKeyA
RegOpenKeyExA
RegCreateKeyA
RegCloseKey
SHFileOperationA
&3&3&3&389
%F" *" a
ADVAPI32.dll
MSVCRT.dll
SHELL32.dll
WS2_32.dll

Explorer.EXE_532_rwx_01E00000_00002000:

SHELL32.DLL
ShellExecuteA
KERNEL32.DLL
.text

%original file name%.exe_1156_rwx_023C0000_00002000:

SHELL32.DLL
ShellExecuteA
KERNEL32.DLL
.text

%original file name%.exe_1156_rwx_024D0000_00001000:

|%original file name%.exeM_1156_

Explorer.EXE_532_rwx_01E10000_00001000:

|explorer.exeM_532_


Remove it with Ad-Aware

  1. Click (here) to download and install Ad-Aware Free Antivirus.
  2. Update the definition files.
  3. Run a full scan of your computer.


Manual removal*

  1. Terminate malicious process(es) (How to End a Process With the Task Manager):No processes have been created.
  2. Delete the original Trojan file.
  3. Delete or disinfect the following files created/modified by the Trojan:

    %WinDir%\system.ini (70 bytes)
    %Program Files%\Common Files\Adobe\ARM\1.0\AdobeARM.exe (12 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\winpyguie.exe (561 bytes)
    %Program Files%\Adobe\Reader 9.0\Reader\Reader_sl.exe (1336 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\btug.exe (561 bytes)
    C:\yigot.exe (99 bytes)
    C:\autorun.inf (313 bytes)
    %Program Files%\Common Files\Java\Java Update\jusched.exe (272 bytes)
    C:\totalcmd\TOTALCMD.EXE (854 bytes)

  4. Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
  5. Reboot the computer.

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

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