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TrojanPSW.Win32.Zbot.4_82ada17adb


HEUR:Trojan.Win32.Generic (Kaspersky), Win32.Malware!Drop (VIPRE), 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: 82ada17adb1a46b8b712c672f6a11017

SHA1: 1315ba2e4a449f4fdc1322b04951637a1a746b95

SHA256: 46f89e36c2e270b2cab78f844f852b7e85b147abf4d3d63d0082e787e16a6ce9

SSDeep: 6144:/Vc1/VRQf3NZVsUzo9Slxh7Q0PPAuWIF1OW9MR4p/XTbb:9cVVRQf3NZV3hxhgbIF1OW9Pbb

Size: 313856 bytes

File type: EXE

Platform: WIN32

Entropy: Packed

PEID: UPolyXv05_v6

Company: no certificate found

Created at: 2007-04-18 14:23:51

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):

82ada17adb1a46b8b712c672f6a11017.exe:444
foones.exe:1344

File activity

The process 82ada17adb1a46b8b712c672f6a11017.exe:444 makes changes in a file system.


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

%Documents and Settings%\%current user%\Application Data\Jaoxyc\foones.exe (1738 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\DSD677D.bat (173 bytes)

The process foones.exe:1344 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 (7080 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (5660 bytes)

Registry activity

The process 82ada17adb1a46b8b712c672f6a11017.exe:444 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" = "D8 6E F0 3C 75 C1 CA 91 2A 8B BD 1F 41 54 1A 90"

[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 foones.exe:1344 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" = "D4 A2 3D B7 28 53 2B 4D 59 6D 98 31 32 D9 1B 1A"

[HKCU\Software\Microsoft\Mideaxo]
"1h2bhh52" = "g6GO HYDJwY1z/Jz0lMMcQ==S"

[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"

Network activity (URLs)

URL IP
hxxp://www.google.com/74.125.225.114
hxxp://www.google.ca/?gws_rd=cr&ei=3iVLUrK5AuWbygHckoHYDQ74.125.225.127


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):

    82ada17adb1a46b8b712c672f6a11017.exe:444
    foones.exe:1344

  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%\Application Data\Jaoxyc\foones.exe (1738 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\DSD677D.bat (173 bytes)
    %Documents and Settings%\%current user%\NTUSER.DAT.LOG (7080 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