Virus.Win32.Sality_101d7d0f33 – Adaware

Dynamic Analysis

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 Virus's file once a user opens a drive's folder in Windows Explorer.

Process activity

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

%original file name%.exe:668
Explorer.EXE:888

Mutexes

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

File activity

The process %original file name%.exe:668 makes changes in the file system.

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

%WinDir%\system.ini (70 bytes)
%Program Files%\Common Files\Adobe\ARM\1.0\AdobeARM.exe (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\cxuhio.exe (561 bytes)
C:\autorun.inf (288 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\endhd.exe (561 bytes)
C:\totalcmd\TOTALCMD.EXE (862 bytes)
C:\nxxpa.pif (99 bytes)

The Virus deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\endhd.exe (0 bytes)
%WinDir%\43360 (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\cxuhio.exe (0 bytes)

Registry activity

The process %original file name%.exe:668 makes changes in the system registry.

The Virus 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"
"m3_3" = "927474798"

[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\Stvncyfrlda]
"m3_7" = "3573965266"

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

[HKCU\Software\Stvncyfrlda]
"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"

[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"

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

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

[HKCU\Software\Stvncyfrlda\168128873]
"-1648771660" = "30"
"1821809806" = "0200687474703A2F2F7061647275702E636F6D2F736F62616B61312E67696600687474703A2F2F3139302E3132302E3232372E39313A383038302F736F62616B61766F6C6F732E676966"

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "FF BE BA 0B EC EB 0A 7A BF AD BD E7 68 8A 76 F4"

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

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

[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
d8c61c83bad2d3029d03e68fba62938e	c:\nxxpa.pif

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 Virus's file once a user opens a drive's folder in Windows Explorer.

Removals

Remove it with Ad-Aware

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

Manual removal*

Terminate malicious process(es) (How to End a Process With the Task Manager):No processes have been created.
Delete the original Virus file.
Delete or disinfect the following files created/modified by the Virus:
%WinDir%\system.ini (70 bytes)
%Program Files%\Common Files\Adobe\ARM\1.0\AdobeARM.exe (4 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\cxuhio.exe (561 bytes)
C:\autorun.inf (288 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\endhd.exe (561 bytes)
C:\totalcmd\TOTALCMD.EXE (862 bytes)
C:\nxxpa.pif (99 bytes)
Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
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.

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	69632	66048	5.53439	ce9442db82f4cbce8436a65e61f963ea

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 241
6c682d9e9d637ded9652171d5e9c34ed
028f25658cada10afc3b622d4d51a3a6
97f42b6abff9994515b4f4fb4542e49a
00af02525daf45296fdb2f85bbcfbfcd
3921bd578d3bc50fa1a673506e03e07a
3812eb8deeb5949802cc2619bb300f0c
9241fb19826439381f1923832cd396ea
821efbb5fbe57ff7e78199a18c7e6f64
e4a92d0d1a9b25ec512b3366ff46695d
4c452fb9c1902ee44b06044408cbe63b
cf7fa0c80fb1ddb24a8edf7c28c1ed70
23375e9f8d8b5202caa48dc3674c7cf7
8e16b5a571c6586c6639b91fcafcafe8
83fe0e48d885912f5cf01d48cece2694
d38356b99cb6cce82bdd18f2e9c74e7e
28334f6a39e4b966835dd392eaa3f7f7
a86325286ac938e4d9e8850d51524cf0
3760120dcf70b57f754cdda8bbb55239
a2c1f15164eb44b299c4de21e7c6f7e0
b70bba3cf37d8c1d77256b2323311d70
941b7ec1b983cd64b5b68975b96811d0
602f4a5f424cd44a61291521b8304550
91fe43c24035b073a9fba8a149bbcd00
d071519ec2d9311e87aab7769aaa5f10
5a0ebb62c185b2bbfd30aaac31006d10

Network Activity

URLs

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

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

Strings from Dumps

%original file name%.exe_668:

.text

KERNEL32.dll

SHELL32.DLL

ShellExecuteA

KERNEL32.DLL

%original file name%.exe

01d7d0f3380a7f2cf72a80dae12d385.exe

hXXp://padrup.com/sobaka1.gif

hXXp://190.120.227.91:8080/sobakavolos.gif

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

Ã„EW

%F" *" a

ADVAPI32.dll

MSVCRT.dll

SHELL32.dll

USER32.dll

WS2_32.dll

RegCloseKey

SHFileOperationA

%original file name%.exe_668_rwx_00401000_00011000:

KERNEL32.dll

SHELL32.DLL

ShellExecuteA

KERNEL32.DLL

%original file name%.exe

.text

01d7d0f3380a7f2cf72a80dae12d385.exe

hXXp://padrup.com/sobaka1.gif

hXXp://190.120.227.91:8080/sobakavolos.gif

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

Ã„EW

%F" *" a

ADVAPI32.dll

MSVCRT.dll

SHELL32.dll

USER32.dll

WS2_32.dll

RegCloseKey

SHFileOperationA

%original file name%.exe_668_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/sobaka1.gif

hXXp://190.120.227.91:8080/sobakavolos.gif

%System%\drivers\mlkki.sys

2753433450

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

%original file name%.exe_668_rwx_023C0000_00002000:

SHELL32.DLL

ShellExecuteA

KERNEL32.DLL

.text

%original file name%.exe_668_rwx_024D0000_00001000:

|%original file name%.exeM_668_

Explorer.EXE_888_rwx_00FF0000_00002000:

SHELL32.DLL

ShellExecuteA

KERNEL32.DLL

.text

Explorer.EXE_888_rwx_01FA0000_00001000:

|explorer.exeM_888_

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps