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Virus.Win32.Duel_d8369e8825


Susp_Dropper (Kaspersky), MemScan:Backdoor.Agent.ZQA (B) (Emsisoft), MemScan:Backdoor.Agent.ZQA (AdAware), Virus.Win32.Duel.FD, GenericEmailWorm.YR, GenericIRCBot.YR (Lavasoft MAS)Behaviour: Backdoor, Worm, EmailWorm, Virus, IRCBot

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

Summary

MD5: d8369e882546f3dc3772030d1bea3650

SHA1: 4d5bbd70469a40929831e5698058d35b43fe3407

SHA256: bfecd161e97dd9b4d8812b26e39f3020d1d0a88d39e85dea2597907d350923ba

SSDeep: 1536:vlrtIPBliPYp6L9 LjGWUEnKyg8ayNYd0LP:vlePB8Y6LsLCWUupv

Size: 60929 bytes

File type: EXE

Platform: WIN32

Entropy: Not Packed

PEID: UPolyXv05_v6

Company: no certificate found

Created at: no data

Analyzed on: WindowsXP SP3 32-bit

Summary: Virus. A program that recursively replicates a possibly evolved copy of itself.

Dynamic Analysis

Payload

Behaviour Description
EmailWormWorm can send e-mails.
IRCBotA bot can communicate with command and control servers via IRC channel.


Process activity

The Virus creates the following process(es):

dwwin.exe:276
%original file name%.exe:1716

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

yyyryry.cmd:224

File activity

The process dwwin.exe:276 makes changes in the file system.


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

%Documents and Settings%\%current user%\Local Settings\Temp\FAC44.dmp (71722 bytes)

The process %original file name%.exe:1716 makes changes in the file system.


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

%WinDir%\xwrm.exe (60 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\a0dc_appcompat.txt (6214 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\yjrrzi.iirqbiqj (60 bytes)

The process yyyryry.cmd:224 makes changes in the file system.


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

%System%\WindowsUpdt.exe (19 bytes)

Registry activity

The process dwwin.exe:276 makes changes in the system registry.


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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "16 36 FE 1F 55 65 2D 30 C2 25 03 B7 C1 B1 6B CA"

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

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 19 00 00 00 01 00 00 00 00 00 00 00"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

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

Proxy settings are disabled:

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

The Virus deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

The process %original file name%.exe:1716 makes changes in the system registry.


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


To automatically run itself each time Windows is booted, the Virus adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"x32x" = "%WinDir%\xwrm.exe"

The Virus deletes the following registry key(s):

[HKLM\SOFTWARE\Microsoft\PCHealth\ErrorReporting\DW]

The Virus deletes the following value(s) in system registry:

[HKLM\SOFTWARE\Microsoft\PCHealth\ErrorReporting\DW]
"DWFileTreeRoot"

The process yyyryry.cmd:224 makes changes in the system registry.


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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "24 3A 50 07 11 C2 E5 CC AB 01 0A 48 04 7C BB FD"

To automatically run itself each time Windows is booted, the Virus adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"WihdowsUpdate" = "%System%\WindowsUpdt.exe"

Dropped PE files

MD5 File path
9cace49f24aa9a2f4f0a29abc4b6ca3cc:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\yjrrzi.iirqbiqj
aae37ad72f817dea8845ff32d16a8ba0c:\WINDOWS\system32\WindowsUpdt.exe
9cace49f24aa9a2f4f0a29abc4b6ca3cc:\WINDOWS\xwrm.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

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):

    dwwin.exe:276
    %original file name%.exe:1716

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

    %Documents and Settings%\%current user%\Local Settings\Temp\FAC44.dmp (71722 bytes)
    %WinDir%\xwrm.exe (60 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\a0dc_appcompat.txt (6214 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\yjrrzi.iirqbiqj (60 bytes)
    %System%\WindowsUpdt.exe (19 bytes)

  4. Delete the following value(s) in the autorun key (How to Work with System Registry):

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
    "x32x" = "%WinDir%\xwrm.exe"

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
    "WihdowsUpdate" = "%System%\WindowsUpdt.exe"

  5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  6. 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
zzyiqqya4096409615360.853894dd69678e59a7530e7c30e5722ddf3b4a
zaayqyaj819257344552964.95233a47e4c596fd3346a6f090785d3429a7e
qiaqjjrr6553640965120.468013dd766bd3556eda6b66f2d7b6ec1b0e21
zqyjaaar69632409620484.10575677f0a894d5ff2f6c088f025736ee3d8

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL IP
irc.undernet.org91.236.182.1

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

Strings from Dumps

%original file name%.exe_1716:

;eE%f;

;eE%f;

\xwrm.exe

\xwrm.exe

%WinDir%\xwrm.exe

%WinDir%\xwrm.exe

Software\Microsoft\Windows\CurrentVersion\Run

Software\Microsoft\Windows\CurrentVersion\Run

USER %s 8 * :%s

USER %s 8 * :%s

NICK %s

NICK %s

PONG %s

PONG %s

JOIN #england

JOIN #england

PRIVMSG #england :.-:[X-Worm]:-.

PRIVMSG #england :.-:[X-Worm]:-.

irc.undernet.org

irc.undernet.org

MAIL FROM:<%s>

MAIL FROM:<%s>

RCPT TO:<%s>

RCPT TO:<%s>

--%s--

--%s--

From:<%s>

From:<%s>

To: %s

To: %s

Subject:%s

Subject:%s

boundary="%s"

boundary="%s"

X-Mailer: Microsoft Outlook Express 6.00.2800.1106

X-Mailer: Microsoft Outlook Express 6.00.2800.1106

X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106

X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106

charset="windows-1255"

charset="windows-1255"

name= "%s%s"

name= "%s%s"

Content-Disposition: attachment; filename="%s%s"

Content-Disposition: attachment; filename="%s%s"

Support

Support

No.reply

No.reply

8.txtt:

8.txtt:

8.htmt2

8.htmt2

8.rtft*

8.rtft*

8.doct"

8.doct"

8.bdxt

8.bdxt

8.phpt

8.phpt

8.jspt

8.jspt

8.cgit

8.cgit

smtp

smtp

ws2_32.dll

ws2_32.dll

ADVAPI32.DLL

ADVAPI32.DLL

RegOpenKeyExA

RegOpenKeyExA

RegCloseKey

RegCloseKey

User32.dll

User32.dll

fs_snap.exe

fs_snap.exe

arnsec.exe

arnsec.exe

ISABL~1.EXE

ISABL~1.EXE

8.exe

8.exe

8.scrtt

8.scrtt

8.avitJ

8.avitJ

8.doctB

8.doctB

8.mp3t:

8.mp3t:

8.mpgt2

8.mpgt2

8.xlst*

8.xlst*

8.jpgt"

8.jpgt"

8.zipt

8.zipt

8.isot

8.isot

8.pdft

8.pdft

8.pptt

8.pptt

8.rart

8.rart

D:\fs_snap.exe

D:\fs_snap.exe

SFC.DLL

SFC.DLL

Pjjaiqq.rrzr

Pjjaiqq.rrzr

D:\jjaiqq.rrzr

D:\jjaiqq.rrzr

ReadMe.exe

ReadMe.exe

c:\%original file name%.exe

c:\%original file name%.exe

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\yjrrzi.iirqbiqj

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\yjrrzi.iirqbiqj

WinExec

WinExec

GetWindowsDirectoryA

GetWindowsDirectoryA

FPTBAWDRF-INOCPANDANTIAMONN32SNOD3NPSSSMSSSCANZONEPROTMONIRWEBMIRCCKDOTROJSAFEJEDITRAYANDASPIDPLORNDLLTRENNSPLNSCHSYSTALERj

FPTBAWDRF-INOCPANDANTIAMONN32SNOD3NPSSSMSSSCANZONEPROTMONIRWEBMIRCCKDOTROJSAFEJEDITRAYANDASPIDPLORNDLLTRENNSPLNSCHSYSTALERj

yyyryry.cmd

yyyryry.cmd

.text

.text

.rsrc

.rsrc

gu>%uM

gu>%uM

~nt.ex

~nt.ex

CrToMaPh

CrToMaPh

hPRIVMSG %s :

hPRIVMSG %s :

kernel32.dll

kernel32.dll

.%suld nb

.%suld nb

KERNEL32.dll

KERNEL32.dll

2'3.3`3}3

2'3.3`3}3

0M1e1w1}1-2x2

0M1e1w1}1-2x2

yyyryry.cmd_224:

.text

.text

.rsrc

.rsrc

\WindowsUpdt.exe

\WindowsUpdt.exe

irc.undernet.org

irc.undernet.org

__MSVCRT_HEAP_SELECT

__MSVCRT_HEAP_SELECT

user32.dll

user32.dll

WinExec

WinExec

KERNEL32.dll

KERNEL32.dll

USER32.dll

USER32.dll

RegCloseKey

RegCloseKey

RegOpenKeyExA

RegOpenKeyExA

ADVAPI32.dll

ADVAPI32.dll

WS2_32.dll

WS2_32.dll

InternetOpenUrlA

InternetOpenUrlA

WININET.dll

WININET.dll

GetCPInfo

GetCPInfo

url1.dat

url1.dat

PRIVMSG %s :Operations Stoped

PRIVMSG %s :Operations Stoped

PRIVMSG %s :Wasting %s

PRIVMSG %s :Wasting %s

PRIVMSG %s :Udp Floding %s

PRIVMSG %s :Udp Floding %s

-!udp_flood

-!udp_flood

PRIVMSG %s :%s Downloaded&executed

PRIVMSG %s :%s Downloaded&executed

1.exe

1.exe

-!download_exe

-!download_exe

PRIVMSG %s :Login Success

PRIVMSG %s :Login Success

-!login

-!login

PRIVMSG

PRIVMSG

%*s %s %*s %s %s %s

%*s %s %*s %s %s %s

MODE %s nsk %s

MODE %s nsk %s

JOIN %s %s

JOIN %s %s

PONG %s

PONG %s

NICK %s

NICK %s

USER %s 8 * :%s

USER %s 8 * :%s

Software\Microsoft\Windows\CurrentVersion\Run

Software\Microsoft\Windows\CurrentVersion\Run

2372057707

2372057707

D:\yyyryry.cmd

D:\yyyryry.cmd

kernel32.dll

kernel32.dll

.%suld nb

.%suld nb

yyyryry.cmd_224_rwx_00401000_0000F000:

\WindowsUpdt.exe

\WindowsUpdt.exe

irc.undernet.org

irc.undernet.org

__MSVCRT_HEAP_SELECT

__MSVCRT_HEAP_SELECT

user32.dll

user32.dll

WinExec

WinExec

KERNEL32.dll

KERNEL32.dll

USER32.dll

USER32.dll

RegCloseKey

RegCloseKey

RegOpenKeyExA

RegOpenKeyExA

ADVAPI32.dll

ADVAPI32.dll

WS2_32.dll

WS2_32.dll

InternetOpenUrlA

InternetOpenUrlA

WININET.dll

WININET.dll

GetCPInfo

GetCPInfo

url1.dat

url1.dat

PRIVMSG %s :Operations Stoped

PRIVMSG %s :Operations Stoped

PRIVMSG %s :Wasting %s

PRIVMSG %s :Wasting %s

PRIVMSG %s :Udp Floding %s

PRIVMSG %s :Udp Floding %s

-!udp_flood

-!udp_flood

PRIVMSG %s :%s Downloaded&executed

PRIVMSG %s :%s Downloaded&executed

1.exe

1.exe

-!download_exe

-!download_exe

PRIVMSG %s :Login Success

PRIVMSG %s :Login Success

-!login

-!login

PRIVMSG

PRIVMSG

%*s %s %*s %s %s %s

%*s %s %*s %s %s %s

MODE %s nsk %s

MODE %s nsk %s

JOIN %s %s

JOIN %s %s

PONG %s

PONG %s

NICK %s

NICK %s

USER %s 8 * :%s

USER %s 8 * :%s

Software\Microsoft\Windows\CurrentVersion\Run

Software\Microsoft\Windows\CurrentVersion\Run

2372057707

2372057707

D:\yyyryry.cmd

D:\yyyryry.cmd

kernel32.dll

kernel32.dll

.%suld nb

.%suld nb