ThreatExpert Report: Trojan-Downloader.MisleadApp!sd6, Trojan-Downloader.Win32.Agent.blaq..

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Submission Summary:

Submission details:

Submission received: 24 March 2009, 13:36:53
Processing time: 7 min 51 sec
Submitted sample:

File MD5: 0xDD49DADCD4B78FE5A91788AB73BA7F39
File SHA-1: 0xB00FEE772C38DC2A0E4A28E0199B07A28BE0787B
Filesize: 152,064 bytes
Alias & packer info:

Trojan-Downloader.MisleadApp!sd6 [PCTools]
Downloader.MisleadApp [Symantec]
Trojan-Downloader.Win32.Agent.blaq [Kaspersky Lab]
Generic Downloader.x [McAfee]
Trojan.Win32.FakeXPA [Ikarus]
Win-Trojan/Downloader.152064.D [AhnLab]
packed with: PE_Patch.UPX [Kaspersky Lab]

Summary of the findings:

What's been found	Severity Level
Hosts file modification that may block access to the security web sites.
Downloads/requests other files from Internet.
Contains characteristics of an identified security risk.

Technical Details:

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Possible Security Risk

Attention! Characteristics of the following security risk was identified in the system:

Security Risk	Description
Trojan-Downloader.MisleadApp!sd6	Trojan-Downloader.MisleadApp!sd6 attempts to download malicious files to the local computer and execute them.

Attention! The following threat category was identified:

Threat Category	Description
	A program that downloads files to the local computer that may represent security risk

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%CommonAppData%\AV1\AV1.cab %CommonAppData%\AV1\av1.exe %CommonAppData%\AV1\QWProtect.dll %CommonAppData%\AV1\svchost.exe	125 bytes	MD5: 0x7C5F5A68051F6B0C0E9A2AD33C40D415 SHA-1: 0x120865765927A61AF83F02B83DC297EEDE61EC41	(not available)
2	%CommonDesktopDir%\Anti-Virus Number-1.lnk	782 bytes	MD5: 0xAD2D513492A47D9A822DAF3646DCB705 SHA-1: 0x251EF3955992835CD52B25DA259463D7D0F8CD10	(not available)
3	%CommonPrograms%\Anti-Virus Number-1\Anti-Virus Number-1.lnk	794 bytes	MD5: 0xFABA40A96589285011952C8D75F72538 SHA-1: 0x0FFB7E7F84E0C704878EEAB24B731DF37D174969	(not available)
4	%CommonPrograms%\Anti-Virus Number-1\Uninstall.lnk	814 bytes	MD5: 0x18E05460C36C18E87642C1655C4183D8 SHA-1: 0xB989A47E4EC920939E994D02D695703FE955ED8B	(not available)
5	[file and pathname of the sample #1]	152,064 bytes	MD5: 0xDD49DADCD4B78FE5A91788AB73BA7F39 SHA-1: 0xB00FEE772C38DC2A0E4A28E0199B07A28BE0787B	Trojan-Downloader.MisleadApp!sd6 [PCTools] Downloader.MisleadApp [Symantec] Trojan-Downloader.Win32.Agent.blaq [Kaspersky Lab] Generic Downloader.x [McAfee] Trojan.Win32.FakeXPA [Ikarus] Win-Trojan/Downloader.152064.D [AhnLab] packed with PE_Patch.UPX [Kaspersky Lab]

Notes:

%CommonAppData% is a variable that refers to the file system directory containing application data for all users. A typical path is C:\Documents and Settings\All Users\Application Data.
%CommonDesktopDir% is a variable that refers to the file system directory that contains files and folders that appear on the desktop for all users. A typical path is C:\Documents and Settings\All Users\Desktop (Windows NT/2000/XP).
%CommonPrograms% is a variable that refers to the file system directory that contains the directories for the common program groups that appear on the Start menu for all users. A typical path is C:\Documents and Settings\All Users\Start Menu\Programs (Windows NT/2000/XP).

The following file was modified:

%System%\drivers\etc\hosts

Notes:

%System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

The following directories were created:

%CommonAppData%\AV1
%CommonPrograms%\Anti-Virus Number-1

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[generic host process]	[generic host process filename]	20,480 bytes

Notes:

[generic host process filename] is a full path filename of [generic host process].

The following system service was modified:

Service Name	Display Name	New Status	Service Filename
wscsvc	Security Center	"Stopped"	%System%\svchost.exe -k netsvcs

Other details

Analysis of the file resources indicate the following possible country of origin:

Ukraine

To mark the presence in the system, the following Mutex object was created:

Local\{96695FFB-F194-46d4-8B1D-15E383C78BD3}

The HOSTS file was updated with the following URL-to-IP mappings:

There was registered attempt to establish connection with the remote host. The connection details are:

Remote Host	Port Number
70.38.11.165	80

The following GET requests were made:

collection.php?step=AV191_install_run&id=none
collection.php?step=AV191_hosts_change&id=none
en/PE/AV1.CAB
en/PE/QWProtect.dll
en/PE/svchost.exe
collection.php?step=AV191_install_exe&id=none
collection.php?step=AV191_expanded&id=none
collection.php?step=AV191_disable_sc&id=none
collection.php?step=AV191_install_plugin&id=none
collection.php?step=AV191_install_svc&id=none
collection.php?step=AV191_create_shortcuts&id=none

The following HTTP URLs were started reading:

http://70.38.11.165/admin/cgi-bin/get_domain.php?type=site
http://70.38.11.165/admin/cgi-bin/get_domain.php?type=download

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