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TrojanPSW.Win32.Zbot.4_4d779261c9


Trojan.Win32.Inject.fvbo (Kaspersky), Trojan.Win32.Urausy.ec (v) (VIPRE), Trojan.Win32.FakeAlert!IK (Emsisoft), Trojan-PSW.Win32.Zbot.4.FD, GenericInjector.YR (Lavasoft MAS)Behaviour: Trojan-PSW, Trojan

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

Summary

MD5: 4d779261c97f421fcecf7b65bf992895

SHA1: 4191153e1e3d5ae9bf3226216bc74e7f7b88ef52

SHA256: 344cd70db48615a66bdbc2103135c20577e1913c0d0eb6870609580dee1ec22f

SSDeep: 6144:Pfge2gbLj8O3wQKnwILTeQpuny13MGO52EJK0LZMRDUkduO3I8oD:Pb2SPX32wsPU52EK0uRAkdi

Size: 315392 bytes

File type: PE32

Platform: WIN32

Entropy: Packed

PEID: UPolyXv05_v6

Company: no certificate found

Created at: 2003-11-14 01:15:40

Summary: Trojan-PSW. Trojan program intended for stealing users passwords.

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan-PSW creates the following process(es):

4d779261c97f421fcecf7b65bf992895.exe:1796
pedoih.exe:1076

File activity

The process 4d779261c97f421fcecf7b65bf992895.exe:1796 makes changes in a file system.


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

%Documents and Settings%\%current user%\Local Settings\Temp\QMKBFF5.bat (173 bytes)
%Documents and Settings%\%current user%\Application Data\Cynec\pedoih.exe (1740 bytes)

The process pedoih.exe:1076 makes changes in a file system.


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

%Documents and Settings%\%current user%\NTUSER.DAT.LOG (7160 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (5180 bytes)

Registry activity

The process 4d779261c97f421fcecf7b65bf992895.exe:1796 makes changes in a system registry.


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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "3D 7F A4 68 32 A2 E4 B4 4B 7A 84 CF 83 14 6D CF"

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

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

The process pedoih.exe:1076 makes changes in a system registry.


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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "D9 51 64 53 68 A8 C0 0C 7C DD F3 17 0E 1C DD 01"

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

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

[HKCU\Software\Microsoft\Kubaupm]
"17a3jfc2" = "UEbTDZGcAFWk51CF/zE=\"

Network activity (URLs)

URL IP
hxxp://www.google.com/74.125.226.211
hxxp://www.google.ca/?gws_rd=cr74.125.226.223


Rootkit activity

The Trojan-PSW installs the following user-mode hooks in WININET.dll:

HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetWriteFile
InternetWriteFileExA
InternetQueryDataAvailable
HttpQueryInfoW
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle

The Trojan-PSW installs the following user-mode hooks in CRYPT32.dll:

PFXImportCertStore

The Trojan-PSW installs the following user-mode hooks in USER32.dll:

GetClipboardData
TranslateMessage

The Trojan-PSW installs the following user-mode hooks in Secur32.dll:

DecryptMessage
SealMessage
DeleteSecurityContext

The Trojan-PSW installs the following user-mode hooks in WS2_32.dll:

WSAGetOverlappedResult
WSASend
recv
gethostbyname
WSARecv
send
closesocket
freeaddrinfo
getaddrinfo
GetAddrInfoW

The Trojan-PSW installs the following user-mode hooks in ntdll.dll:

LdrLoadDll
NtCreateThread

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. Scan a system with an anti-rootkit tool.
  2. Terminate malicious process(es) (How to End a Process With the Task Manager):

    4d779261c97f421fcecf7b65bf992895.exe:1796
    pedoih.exe:1076

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

    %Documents and Settings%\%current user%\Local Settings\Temp\QMKBFF5.bat (173 bytes)
    %Documents and Settings%\%current user%\Application Data\Cynec\pedoih.exe (1740 bytes)
    %Documents and Settings%\%current user%\NTUSER.DAT.LOG (7160 bytes)

  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

Network Activity

Map

Strings from Dumps