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Trojan-spy.qqtail Analysis Report
Threat Submitted On: 9/21/2008 6:10:03 PM
Threat Analysed On: 9/21/2008 11:10:03 PM
Threat Updated On: 1/28/2011 3:52:45 PM
Type : Trojan-spy
Symptoms of qqtail
  • Fetches the information related to the user-activities.
  • Records keystrokes, websites visited, clipboard etc. and takes the snapshots.
  • Sends the recorded information to the attacker.
Information
Alias : trojan-spy.win32.qqtail.g
Md5 Hash : [f9e81282c3338fdfca736f1fcb90e967]
File Size : [Not Available]

Technical Details

Here are the Technical findings of our analysis team after analyzing this malware in detail :-

Creates the following infected Files on user's System
Note:
Delete the following Files to remove Infection
File: [RandomName].exeabc
Path : %workingdir%

Md5Hash :1b9fd2cf3365df9361f239d342ef35e1 ( bytes)
File: [RandomName].exeabc
Path : %workingdir%

Md5Hash :384bafc63e9252905cac768588eb6e19 ( bytes)
File: [RandomName].exeabc
Path : %workingdir%

Md5Hash :91df40cd624f70b3bf7073e493e9d366 ( bytes)
File: [RandomName].exeabc
Path : %workingdir%

Md5Hash :f9e81282c3338fdfca736f1fcb90e967 ( bytes)
File: qtapp2.dll
Path : %windir%

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Collapse Md5Hash :Md5Hash :
1b9fd2cf3365df9361f239d342ef35e1 ( 161646 bytes)
f9e81282c3338fdfca736f1fcb90e967 ( 76540 bytes)
File: lass.exe
Path : %windir%\system32

Md5Hash :45289e368059d8758cf438e9b70ab3eb ( 90112 bytes)
File: qtapp.exe
Path : %windir%\system32

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Collapse Md5Hash :Md5Hash :
1b9fd2cf3365df9361f239d342ef35e1 ( 161646 bytes)
f9e81282c3338fdfca736f1fcb90e967 ( 76540 bytes)
File: qtapp.exeabc
Path : %windir%\system32

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Collapse Md5Hash :Md5Hash :
1b9fd2cf3365df9361f239d342ef35e1 ( bytes)
f9e81282c3338fdfca736f1fcb90e967 ( bytes)
File: qtapph.dll
Path : %windir%\system32

Md5Hash :cc449e2e64ca2ac0f29f76cb8e0c0754 ( 43008 bytes)
File: qtapps.dll
Path : %windir%\system32

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Collapse Md5Hash :Md5Hash :
20b88968999db9f06d280c6391a64c47 ( 67072 bytes)
496437176142a64fed1ef486ef3ad67b ( 67072 bytes)
File: syslggo.exe
Path : %windir%\system32

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Collapse Md5Hash :Md5Hash :
00e7247e443a998789db380e9c61aaa6 ( 90624 bytes)
5157d0a7da013e229114b9b4d95805cc ( 90625 bytes)
File: sysnet.exe
Path : %windir%\system32

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Collapse Md5Hash :Md5Hash :
00e7247e443a998789db380e9c61aaa6 ( 90624 bytes)
5157d0a7da013e229114b9b4d95805cc ( 90625 bytes)
File: updatee.exe
Path : %windir%\system32

Skip Navigation Links.
Collapse Md5Hash :Md5Hash :
00e7247e443a998789db380e9c61aaa6 ( 90624 bytes)
5157d0a7da013e229114b9b4d95805cc ( 90625 bytes)
File: winsocks.dll
Path : %windir%\system32

Md5Hash :7a3e83ee398d7db26dc421d6eb24767f ( 47616 bytes)
File: [randomname].exe
Path : %workingdir%

Skip Navigation Links.
Collapse Md5Hash :Md5Hash :
00e7247e443a998789db380e9c61aaa6 ( 90624 bytes)
0c1135168392c28264d0863d84fb6a1a ( 24064 bytes)
1b8e7a9f1e372d79d5a70c86a3130b4f ( 34306 bytes)
1b9fd2cf3365df9361f239d342ef35e1 ( bytes)
384bafc63e9252905cac768588eb6e19 ( 62976 bytes)
45289e368059d8758cf438e9b70ab3eb ( 90112 bytes)
4fe304b846855cea44f5feeec746e3f6 ( 24066 bytes)
5157d0a7da013e229114b9b4d95805cc ( 90625 bytes)
91df40cd624f70b3bf7073e493e9d366 ( 63034 bytes)
ce3e4ee0a5ccdc1c01f33e9059aba260 ( 14338 bytes)
f9e81282c3338fdfca736f1fcb90e967 ( bytes)
The following Registry Values are added to the provided Registry Keys :-
Note:
Delete the added Values from the Key to remove Infection
|__ Value Added :
svchost.exe = "%windir%\system32\lass.exe"
|__ Value Added :
Intrenat = "%WINDIR%\systermt.exe"
|__ Value Added :
intrenat = "%windir%\systermt.exe"
|__ Value Added :
windows update = "%windir%\system32\updatee.exe"
Creates the following child process(s) on execution:

regsvr32.exe /s %windir%\system32\qtapps.dll

%windir%\system32\qtapp.exe

%workingdir%\$$336699.bat

Copies the Following Files to Given Location :-

Copies :%workingdir%\[random name].exe

To : %workingdir%\[random name].exeabc

Copies :%workingdir%\[random name].exe

To : %windir%\system32\qtapp.exe

Copies :%workingdir%\[random name].exe

To : %windir%\qtapp2.dll

Copies :%windir%\system32\qtapp.exe

To : %windir%\system32\qtapp.exeabc

NOTE:

2. %workingdir% Refers to the current directory in which user is working.
3. %windir% Refers to the windows root folder. By default it is 'C:\Windows'

Important: We strongly recommend that you backup the Registry before making any changes to it. Incorrect changes to the Registry can result in permanent data loss or corrupted Files. Modify the malicious\suspicious Subkeys only.

Click Here for more spywarelib.com recommended PC Security and Optimization Tools

To modify registry entries in Windows Operating System:
Follow Steps:
1. Click Start > Run
2. Type “regedit” : to open registry editor
3. Navigate to required registry Key from the Left Tree control and modify accordingly.


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