Shiz_b8d3316b1e

by malwarelabrobot on June 28th, 2013 in Malware Descriptions.

Susp_Dropper (Kaspersky), VirTool.Win32.Obfuscator.hg!a (v) (VIPRE), Win32.SuspectCrc!IK (Emsisoft), Backdoor.Win32.Shiz.FD, GenericInjector.YR, Shiz.YR, BackdoorCaphaw_QKKBAL.YR (Lavasoft MAS)
Behaviour: Backdoor, VirTool


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

Summary
Technical Details
Removal Recommendations

MD5: b8d3316b1e714f81cf848ccc455705bf
SHA1: b0bf429b719e884539691978a50e45fe8655f899
SHA256: 6a309f34d48c974fc9835825dbf195b61c3fc92db9086802d1b29a1d4d4e6efb
SSDeep: 6144:dcfqGJSFKnLQXBgBrX227mz4DgAxOvKWr8:mtJS40x0pDgAxOv/8
Size: 245248 bytes
File type: PE32
Platform: WIN32
Entropy: Packed
PEID: BorlandDelphi30; UPolyXv05_v6
Company: no certificate found
Created at: 1990-04-16 10:11:03


Summary:

Backdoor. Malware that enables a remote control of victim's machine.
VirTool. A program used to apply passive protection methods to viruses, such as obfuscation, encryption, polymorphism. The original virus is usually encrypted/compressed and stored inside the wrapper.

Process activity

The Backdoor creates the following process(es):

b8d3316b1e714f81cf848ccc455705bf.exe:2592

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

ctfmon.exe:252

File activity

The process b8d3316b1e714f81cf848ccc455705bf.exe:2592 makes changes in a file system.
The Backdoor creates and/or writes to the following file(s):

%WinDir%\AppPatch\xynodu.exe (1771 bytes)
%System%\config\software (3028 bytes)
%System%\config\software.LOG (5300 bytes)

The Backdoor deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\1.tmp (0 bytes)

Registry activity

The process b8d3316b1e714f81cf848ccc455705bf.exe:2592 makes changes in a system registry.
The Backdoor creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "83 DA CA B3 FE 27 65 DA BF C3 EA 29 68 75 51 4E"

[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\%WinDir%\apppatch\xynodu.exe_, \??\%WinDir%\apppatch\xynodu.exe"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
"d8cc41db" = "CêkæÚ`Ã¥D 5õÔPôPW«m&e4¹à”¸a4d‚\yìqA}(Äé¼ü4|Âá@”°™,¡¤üHrѼ©€©”´D0}éiXª¸|Èy4¡RYÑúièmÑ©È„IáØð ±¼(¤ ádIÚبìdËœ XYâÀeÅ“iü¥AÅ¡Ii¸rÂ¥(¡A\y 9€éñ$ZÔa xÙ9

The process ctfmon.exe:252 makes changes in a system registry.
The Backdoor creates and/or sets the following values in system registry:

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

The Backdoor deletes the following value(s) in system registry:
The Backdoor disables automatic startup of the application by deleting the following autorun value:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"internat.exe"

Network activity (URLs)

URL: hxxp://50.116.56.144/login.php Country: United States

Rootkit activity

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

CertVerifyCertificateChainPolicy

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

HttpSendRequestExW
HttpSendRequestExA
InternetReadFileExA
InternetReadFileExW
HttpSendRequestA
HttpSendRequestW
InternetQueryDataAvailable
InternetCloseHandle
InternetReadFile

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

GetWindowTextA
GetClipboardData
SendInput
GetMessageA
GetMessageW
TranslateMessage

The Backdoor installs the following user-mode hooks in ADVAPI32.dll:

CryptEncrypt

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

WSASend
recv
gethostbyname
WSARecv
send

The Backdoor installs the following user-mode hooks in kernel32.dll:

CreateFileW

Propagation


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):

    b8d3316b1e714f81cf848ccc455705bf.exe:2592

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

    %WinDir%\AppPatch\xynodu.exe (1771 bytes)
    %System%\config\software (3028 bytes)
    %System%\config\software.LOG (5300 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.