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Trojan.SalityStub.F_20c92c4f3c


Trojan.Win32.Small.cox (Kaspersky), Win32.Sality.3 (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.

Summary

MD5: 20c92c4f3c7761050e518ae81ddf9fed

SHA1: 6f7f0fcb3da3a7b284bbbe663091edd5513f338f

SHA256: 2355e819fd64aac4dce8ab996b55bcf4d99fd1046676e7fefb17262f78d51a24

SSDeep: 1536:6Kl9ZYZr7Mc16Nxyy E/HcGpYVeMNQcIJ4teo636dYy:ZYp7MQyyfZGaVdNPIJ4teiYy

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: WindowsXPESX SP3 32-bit

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

Dynamic Analysis

Payload

Behaviour Description
WormAutorunA 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):

mscorsvw.exe:1912

The Trojan injects its code into the following process(es):

%original file name%.exe:508
Explorer.EXE:840

Mutexes

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

File activity

The process %original file name%.exe:508 makes changes in the file system.


The Trojan creates and/or writes to the following file(s):

%WinDir%\system.ini (72 bytes)
%Program Files%\Common Files\Adobe\ARM\1.0\AdobeARM.exe (4 bytes)
C:\autorun.inf (238 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\Reader_sl.exe (840 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\vshqwa.exe (561 bytes)
C:\cqhpa.exe (99 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\winoees.exe (561 bytes)
%Program Files%\Common Files\Java\Java Update\jusched.exe (176 bytes)
\\XP1\PIPE\srvsvc (72 bytes)

The Trojan deletes the following file(s):

%WinDir%\2861b5 (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\winoees.exe (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\vshqwa.exe (0 bytes)

Registry activity

The process mscorsvw.exe:1912 makes changes in the system registry.


The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\.NETFramework\v2.0.50727\NGenService\State]
"AccumulatedWaitIdleTime" = "2340000"

The process %original file name%.exe:508 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"

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

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

[HKCU\Software\Stvncyfrlda]
"m2_2" = "3470576471"
"m2_0" = "5517"
"m2_1" = "1735293664"
"m4_2" = "3470581466"

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

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

[HKCU\Software\Stvncyfrlda\168128873]
"1735290733" = "14"

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

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

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

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

[HKCU\Software\Stvncyfrlda]
"m4_1" = "1735290733"

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

[HKCU\Software\Stvncyfrlda]
"m3_2" = "3487544563"

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

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

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

[HKCU\Software\Stvncyfrlda\168128873]
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

[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"
"1821809806" = "0200687474703A2F2F7061647275702E636F6D2F736F62616B61312E67696600687474703A2F2F3139302E3132302E3232372E39313A383038302F736F62616B61766F6C6F732E676966"

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "92 63 A0 EB 97 3A 96 E3 F2 63 2C CC 1F FC 95 F5"

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

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

[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"

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

[HKCU\Software\Stvncyfrlda\168128873]
"86519073" = "75"

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

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
41bb94ef6a6d7ac030301ab07f4b945cc:\cqhpa.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.

Removals

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):

    mscorsvw.exe:1912

  2. Delete the original Trojan file.
  3. Delete or disinfect the following files created/modified by the Trojan:

    %WinDir%\system.ini (72 bytes)
    %Program Files%\Common Files\Adobe\ARM\1.0\AdobeARM.exe (4 bytes)
    C:\autorun.inf (238 bytes)
    %Program Files%\Adobe\Reader 9.0\Reader\Reader_sl.exe (840 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\vshqwa.exe (561 bytes)
    C:\cqhpa.exe (99 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\winoees.exe (561 bytes)
    %Program Files%\Common Files\Java\Java Update\jusched.exe (176 bytes)
    \\XP1\PIPE\srvsvc (72 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.

Static Analysis

VersionInfo

No information is available.

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text409669632660485.53563c20cd8474b7325791aa797c3a9e4d348

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:


Total found: 266
5ff0c334c608392ad811794f18fe9f01
ae2be3e411d3cfd4b339377dbb0fa12e
6c3f51f80fdcbec81e18ded608294606
c499a07f04be440c35bbd762fbc83a16
0ad4ec5f03e616d1b685750a7dfcb718
215da01934bf598825720963cef55ae8
70caa9dd0a74da0186e68966d062e96b
1c14697372b5f70da288179f36fb0667
f3c420efdd917149b5d5381754d7046b
4e9ec84fea2f7d3f0a1fe0030159f6b7
3b9ba33428156d858c47f364d1439691
4e30a255c686c53a3b6c05491202a8b4
0bd296410f1bae0613021a9932c3d7a2
ec163d132fb6136003616d1225d40cee
19d9ae78b5825a31760a5dc34813c336
39471a78d34cb5a76c83fa03f7619047
e60b5fa9a06051346729b8b658529955
d929d9a68eccf8da2a0adc998e0233ff
f401c75f53ec444064a0289764721647
e7362488ecb2f43687fc64515f4cd120
7c40d26902060e5cec18bbf07e2110bf
1af921ab0325e568cf8aa0316dfad9d9
f586d8be76426ff58ad7683620a723a0
ab513a3b5ffd3456b0c6bc9509716c00
c4f66ecc1939d18bf35c62107d75ceb9

Network Activity

URLs

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

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

Strings from Dumps

%original file name%.exe_508:

.text

.text

KERNEL32.dll

KERNEL32.dll

SHELL32.DLL

SHELL32.DLL

ShellExecuteA

ShellExecuteA

KERNEL32.DLL

KERNEL32.DLL

%original file name%.exe

%original file name%.exe

0c92c4f3c7761050e518ae81ddf9fed.exe

0c92c4f3c7761050e518ae81ddf9fed.exe

hXXp://padrup.com/sobaka1.gif

hXXp://padrup.com/sobaka1.gif

hXXp://190.120.227.91:8080/sobakavolos.gif

hXXp://190.120.227.91:8080/sobakavolos.gif

hXXp://89.11

hXXp://89.11

.info/home.gifIh

.info/home.gifIh

bW.text

bW.text

JKERNEL32.dll

JKERNEL32.dll

%x.exe

%x.exe

h.rdla&

h.rdla&

mH.MN8

mH.MN8

T4.At%

T4.At%

S.twa

S.twa

.klkjw:9fqwiBumW

.klkjw:9fqwiBumW

.sysa

.sysa

Zc.pBTa

Zc.pBTa

~%s:*:yd:

~%s:*:yd:

.!.VF*

.!.VF*

.d&?%x=

.d&?%x=

GUrlA'

GUrlA'

"\'Web%w}

"\'Web%w}

HTTP)s'PS

HTTP)s'PS

2GUARDCMD

2GUARDCMD

o.ENHCDM

o.ENHCDM

wWEBWUPD

wWEBWUPD

MM.PF

MM.PF

%xn'[

%xn'[

>>?456789:;

>>?456789:;

!"#$%&'()* ,-./01

!"#$%&'()* ,-./01

B.PPP

B.PPP

%fvq(

%fvq(

TCp|Q

TCp|Q

%F" *" a

%F" *" a

ADVAPI32.dll

ADVAPI32.dll

MSVCRT.dll

MSVCRT.dll

SHELL32.dll

SHELL32.dll

USER32.dll

USER32.dll

WS2_32.dll

WS2_32.dll

RegCloseKey

RegCloseKey

SHFileOperationA

SHFileOperationA

%original file name%.exe_508_rwx_00401000_00011000:

KERNEL32.dll

KERNEL32.dll

SHELL32.DLL

SHELL32.DLL

ShellExecuteA

ShellExecuteA

KERNEL32.DLL

KERNEL32.DLL

%original file name%.exe

%original file name%.exe

.text

.text

0c92c4f3c7761050e518ae81ddf9fed.exe

0c92c4f3c7761050e518ae81ddf9fed.exe

hXXp://padrup.com/sobaka1.gif

hXXp://padrup.com/sobaka1.gif

hXXp://190.120.227.91:8080/sobakavolos.gif

hXXp://190.120.227.91:8080/sobakavolos.gif

hXXp://89.11

hXXp://89.11

.info/home.gifIh

.info/home.gifIh

bW.text

bW.text

JKERNEL32.dll

JKERNEL32.dll

%x.exe

%x.exe

h.rdla&

h.rdla&

mH.MN8

mH.MN8

T4.At%

T4.At%

S.twa

S.twa

.klkjw:9fqwiBumW

.klkjw:9fqwiBumW

.sysa

.sysa

Zc.pBTa

Zc.pBTa

~%s:*:yd:

~%s:*:yd:

.!.VF*

.!.VF*

.d&?%x=

.d&?%x=

GUrlA'

GUrlA'

"\'Web%w}

"\'Web%w}

HTTP)s'PS

HTTP)s'PS

2GUARDCMD

2GUARDCMD

o.ENHCDM

o.ENHCDM

wWEBWUPD

wWEBWUPD

MM.PF

MM.PF

%xn'[

%xn'[

>>?456789:;

>>?456789:;

!"#$%&'()* ,-./01

!"#$%&'()* ,-./01

B.PPP

B.PPP

%fvq(

%fvq(

TCp|Q

TCp|Q

%F" *" a

%F" *" a

ADVAPI32.dll

ADVAPI32.dll

MSVCRT.dll

MSVCRT.dll

SHELL32.dll

SHELL32.dll

USER32.dll

USER32.dll

WS2_32.dll

WS2_32.dll

RegCloseKey

RegCloseKey

SHFileOperationA

SHFileOperationA

%original file name%.exe_508_rwx_00520000_010BA000:

hXXp://89.11

hXXp://89.11

.info/home.gifIh

.info/home.gifIh

bW.text

bW.text

JKERNEL32.dll

JKERNEL32.dll

%x.exe

%x.exe

hXXp://89.119.67.154/testo5/

hXXp://89.119.67.154/testo5/

hXXp://kukutrustnet777.info/home.gif

hXXp://kukutrustnet777.info/home.gif

hXXp://kukutrustnet888.info/home.gif

hXXp://kukutrustnet888.info/home.gif

hXXp://kukutrustnet987.info/home.gif

hXXp://kukutrustnet987.info/home.gif

.text

.text

KERNEL32.dll

KERNEL32.dll

.reloc

.reloc

USER32.dll

USER32.dll

h.rdata

h.rdata

H.data

H.data

ntoskrnl.exe

ntoskrnl.exe

Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 6.0)

Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 6.0)

Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\MuiCache

Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\MuiCache

Software\Microsoft\Windows\CurrentVersion\Internet Settings

Software\Microsoft\Windows\CurrentVersion\Internet Settings

Software\Microsoft\Windows\CurrentVersion

Software\Microsoft\Windows\CurrentVersion

hXXp://VVV.klkjwre9fqwieluoi.info/

hXXp://VVV.klkjwre9fqwieluoi.info/

hXXp://kukutrustnet777888.info/

hXXp://kukutrustnet777888.info/

Software\Microsoft\Windows\CurrentVersion\policies\system

Software\Microsoft\Windows\CurrentVersion\policies\system

Software\Microsoft\Windows\ShellNoRoam\MUICache

Software\Microsoft\Windows\ShellNoRoam\MUICache

%s:*:Enabled:ipsec

%s:*:Enabled:ipsec

SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced

SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced

GdiPlus.dll

GdiPlus.dll

hXXp://

hXXp://

ipfltdrv.sys

ipfltdrv.sys

VVV.microsoft.com

VVV.microsoft.com

?%x=%d

?%x=%d

&%x=%d

&%x=%d

SYSTEM.INI

SYSTEM.INI

USER32.DLL

USER32.DLL

.%c%s

.%c%s

\\.\amsint32

\\.\amsint32

NTDLL.DLL

NTDLL.DLL

autorun.inf

autorun.inf

ADVAPI32.DLL

ADVAPI32.DLL

win%s.exe

win%s.exe

%s.exe

%s.exe

WININET.DLL

WININET.DLL

InternetOpenUrlA

InternetOpenUrlA

avast! Web Scanner

avast! Web Scanner

Avira AntiVir Premium WebGuard

Avira AntiVir Premium WebGuard

cmdGuard

cmdGuard

cmdAgent

cmdAgent

Eset HTTP Server

Eset HTTP Server

ProtoPort Firewall service

ProtoPort Firewall service

SpIDer FS Monitor for Windows NT

SpIDer FS Monitor for Windows NT

Symantec Password Validation

Symantec Password Validation

WebrootDesktopFirewallDataService

WebrootDesktopFirewallDataService

WebrootFirewall

WebrootFirewall

%d%d.tmp

%d%d.tmp

SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList

SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList

%s\%s

%s\%s

%s\Software\Microsoft\Windows\CurrentVersion\Ext\Stats

%s\Software\Microsoft\Windows\CurrentVersion\Ext\Stats

Software\Microsoft\Windows\CurrentVersion\Ext\Stats

Software\Microsoft\Windows\CurrentVersion\Ext\Stats

SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects

SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects

KERNEL32.DLL

KERNEL32.DLL

Explorer.exe

Explorer.exe

A2CMD.

A2CMD.

ASHWEBSV.

ASHWEBSV.

AVGCC.AVGCHSVX.

AVGCC.AVGCHSVX.

DRWEB

DRWEB

DWEBLLIO

DWEBLLIO

DWEBIO

DWEBIO

FSGUIEXE.

FSGUIEXE.

MCVSSHLD.

MCVSSHLD.

NPFMSG.

NPFMSG.

SYMSPORT.

SYMSPORT.

WEBSCANX.

WEBSCANX.

%c%d_%d

%c%d_%d

purity_control_%x

purity_control_%x

.adata

.adata

M_%d_

M_%d_

?456789:;

?456789:;

!"#$%&'()* ,-./0123

!"#$%&'()* ,-./0123

mong%WinDir%\

mong%WinDir%\

%WinDir%\hywjfubtsnl.log

%WinDir%\hywjfubtsnl.log

hXXp://padrup.com/sobaka1.gif

hXXp://padrup.com/sobaka1.gif

hXXp://190.120.227.91:8080/sobakavolos.gif

hXXp://190.120.227.91:8080/sobakavolos.gif

%System%\drivers\lnpomn.sys

%System%\drivers\lnpomn.sys

26465783542

26465783542

SHELL32.DLL

SHELL32.DLL

ShellExecuteA

ShellExecuteA

GetProcessHeap

GetProcessHeap

GetWindowsDirectoryA

GetWindowsDirectoryA

RegEnumKeyExA

RegEnumKeyExA

RegDeleteKeyA

RegDeleteKeyA

RegOpenKeyExA

RegOpenKeyExA

RegCreateKeyA

RegCreateKeyA

RegCloseKey

RegCloseKey

SHFileOperationA

SHFileOperationA

&3&3&3&389

&3&3&3&389

%F" *" a

%F" *" a

ADVAPI32.dll

ADVAPI32.dll

MSVCRT.dll

MSVCRT.dll

SHELL32.dll

SHELL32.dll

WS2_32.dll

WS2_32.dll

%original file name%.exe_508_rwx_023C0000_00002000:

SHELL32.DLL

SHELL32.DLL

ShellExecuteA

ShellExecuteA

KERNEL32.DLL

KERNEL32.DLL

.text

.text

%original file name%.exe_508_rwx_024D0000_00001000:

|%original file name%.exeM_508_

|%original file name%.exeM_508_

Explorer.EXE_840_rwx_01450000_00002000:

SHELL32.DLL

SHELL32.DLL

ShellExecuteA

ShellExecuteA

KERNEL32.DLL

KERNEL32.DLL

.text

.text

Explorer.EXE_840_rwx_01C60000_00001000:

|explorer.exeM_840_

|explorer.exeM_840_