ThreatExpert Report: Trojan-Spy.Agent

Submission Summary:

Submission details:

Submission received: 10 November 2009, 12:26:46
Processing time: 10 min 42 sec
Submitted sample:

File MD5: 0x26A79E3E4DCD039FB06E161FC1BBD5FA
File SHA-1: 0x616E5E8FEB7187E0998CB3AC77F1810F488B5083
Filesize: 69,120 bytes

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Creates a startup registry entry.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! Characteristics of the following security risks were identified in the system:

Security Risk	Description
Rootkit.Agent.EX	Rootkit.Agent.EX hides its presence in infected machine in order to perform malicious actions without user's knowledge.
Trojan.Agent	Trojan.Agent will spy on the browsing habits of users, modify Internet Explorer settings and download malicious files.

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Windir%\srcdll.exe [file and pathname of the sample #1]	69,120 bytes	MD5: 0x26A79E3E4DCD039FB06E161FC1BBD5FA SHA-1: 0x616E5E8FEB7187E0998CB3AC77F1810F488B5083	(not available)
2	%System%\abcdefg.bat	80 bytes	MD5: 0x3C2C2719C39678A7EF5013EB16B6F6EF SHA-1: 0x323DFEA7B524E2781DC2A4584A72A22981EEE9A0	Trojan-Spy.Agent [Ikarus]

Notes:

%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.
%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).

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
srcdll.exe	%Windir%\srcdll.exe	94,208 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	94,208 bytes

The following system services were modified:

Service Name	Display Name	New Status	Service Filename
ALG	Application Layer Gateway Service	"Stopped"	%System%\alg.exe
SharedAccess	Windows Firewall/Internet Connection Sharing (ICS)	"Stopped"	%System%\svchost.exe -k netsvcs
wscsvc	Security Center	"Stopped"	%System%\svchost.exe -k netsvcs

Registry Modifications

The following Registry Keys were created:

HKEY_USERS\.DEFAULT\Software\Microsoft\InetData
HKEY_CURRENT_USER\Software\Microsoft\InetData

The newly created Registry Values are:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]

ttool = "%Windir%\srcdll.exe"

so that srcdll.exe runs every time Windows starts

[HKEY_CURRENT_USER\Software\Microsoft\InetData]

k1 = 0x549EE702
k2 = 0x485F2741
version = "14"
RF = "1"

Other details

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

___RHaiuy72Mjtex

The following ports were open in the system:

Port	Protocol	Process
1038	UDP	srcdll.exe (%Windir%\srcdll.exe)
1083	UDP	srcdll.exe (%Windir%\srcdll.exe)
1110	TCP	srcdll.exe (%Windir%\srcdll.exe)
1114	TCP	srcdll.exe (%Windir%\srcdll.exe)
1115	UDP	srcdll.exe (%Windir%\srcdll.exe)
7649	TCP	srcdll.exe (%Windir%\srcdll.exe)
9274	TCP	srcdll.exe (%Windir%\srcdll.exe)
21633	TCP	srcdll.exe (%Windir%\srcdll.exe)

The following Internet Connections were established:

Server Name	Server Port	Connect as User	Connection Password
91.213.94.130	80	(null)	(null)
91.213.94.130	0	(null)	(null)

The following GET requests were made:

cgi-bin/cmd.cgi?user_id=1419699970&version_id=14&passphrase=fkjvhsdvlksdhvlsd&socks=9274&version=132&crc=00000000
cgi-bin/options.cgi?user_id=1419699970&version_id=14&passphrase=fkjvhsdvlksdhvlsd&socks=9274&version=132&crc=00000000
cgi-bin/cmd.cgi?user_id=1419699970&version_id=14&passphrase=fkjvhsdvlksdhvlsd&socks=7649&version=132&crc=00000000
cgi-bin/options.cgi?user_id=1419699970&version_id=14&passphrase=fkjvhsdvlksdhvlsd&socks=7649&version=132&crc=00000000
cgi-bin/options.cgi?user_id=1419699970&version_id=14&passphrase=fkjvhsdvlksdhvlsd&socks=21633&version=132&crc=00000000

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