ThreatExpert Report: Trojan Horse, Trojan-Downloader.Java.OpenStream.ad, Troj/BytVrfy-C..

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Submission Summary:

Submission details:

Submission received: 21 May 2010, 09:30:50
Processing time: 9 min 42 sec
Submitted sample:

File MD5: 0x8D499308DF04932ED1B58A78417D6FB9
File SHA-1: 0x6BEADF3CE1F0C2B93FCA9CD2946E0B72D2B896CE
Filesize: 4,519 bytes
Alias:

Trojan Horse [Symantec]
Trojan-Downloader.Java.OpenStream.ad [Kaspersky Lab]
Troj/BytVrfy-C [Sophos]
Trojan-Downloader.Java.OpenStream [Ikarus]

Summary of the findings:

What's been found	Severity Level
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! The following threat category was identified:

Threat Category	Description
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Temp%\META-INF\MANIFEST.MF	21 bytes	MD5: 0xB6B7C3896D80AB0694F0E5DA56EC8CBB SHA-1: 0x914B841A200E2D7C7EC1DADFCB6BA5D94226D79F	(not available)
2	%Temp%\myf\y\AppletX.class	2,981 bytes	MD5: 0x2B0886A20F4C4F246CA5A67ECCC79D50 SHA-1: 0x6FA52C465D153A772ED3461CDE5026FA9CDBBA74	Trojan Horse [Symantec] Exploit.Java.Agent.f [Kaspersky Lab] Exploit-ByteVerify [McAfee] Troj/BytVrfy-C [Sophos] Exploit:JavaCVE-2008 [Ikarus] Java/OpenStream [AhnLab]
3	%Temp%\myf\y\LoaderX.class	2,350 bytes	MD5: 0xE00A12733AFEA021C6396D62F57A3D2E SHA-1: 0xB530CC633C9A942E4D45AF9478A331237E0EE1C3	Trojan Horse [Symantec] Exploit-ByteVerify [McAfee] Troj/BytVrfy-C [Sophos] Trojan-Downloader.Java.OpenStream [Ikarus] Java/OpenStream [AhnLab]
4	%Temp%\myf\y\PayloadX.class	2,238 bytes	MD5: 0x8314B615AAC5068F27F1BCA04B59BF80 SHA-1: 0x9FC44F914B4E1893E518E274028C48EC7F496BA2	Trojan Horse [Symantec] Trojan-Downloader.Java.OpenStream.ad [Kaspersky Lab] Exploit-ByteVerify [McAfee] Troj/BytVrfy-C [Sophos] Trojan-Downloader.Java.OpenStream [Ikarus] Java/OpenStream [AhnLab]
5	[file and pathname of the sample #1]	4,519 bytes	MD5: 0x8D499308DF04932ED1B58A78417D6FB9 SHA-1: 0x6BEADF3CE1F0C2B93FCA9CD2946E0B72D2B896CE	Trojan Horse [Symantec] Exploit.Java.Agent.f, Trojan-Downloader.Java.OpenStream.ad [Kaspersky Lab] Troj/BytVrfy-C [Sophos] Trojan-Downloader.Java.OpenStream [Ikarus]

Note:

%Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).

The following directories were created:

%Temp%\META-INF
%Temp%\myf
%Temp%\myf\y

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