ThreatExpert Report: Backdoor.Trojan, Trojan-Downloader.Win32.Adload, Troj/Bdoor-AZC..

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Submission Summary:

Submission details:

Submission received: 11 August 2012, 13:31:56
Processing time: 14 min 28 sec
Submitted sample:

File MD5: 0x4550F0094E1A6EC45AEC94F1F4FF4DC3
File SHA-1: 0x87D6EA1BD07F7FD2F08CA625C7C07714E55D24BE
Filesize: 4,576,257 bytes
Alias:

Backdoor.Trojan [Symantec]
Trojan-Downloader.Win32.Adload [Ikarus]

Summary of the findings:

What's been found	Severity Level
Capability to send out email message(s) with the built-in SMTP client engine.
Registers a 32-bit in-process server DLL.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! The following threat categories were identified:

Threat Category	Description
	A malicious backdoor trojan that runs in the background and allows remote access to the compromised system
	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%\17.exe	1,835,520 bytes	MD5: 0x9942A088702EC26FCD4C4B874621A33C SHA-1: 0x268CCD8CA9CE7C2B0C718DDED534EE981A0E179F	Backdoor.Trojan [Symantec] Troj/Bdoor-AZC [Sophos] Trojan.Win32.Patcher [Ikarus] packed with UPX [Kaspersky Lab]
2	%Temp%\34.exe	1,808,896 bytes	MD5: 0xA1E3F287637E589593313B686EB5E26B SHA-1: 0x1F80B01D5A191678903263D35CF4F56B979722E5	Trojan-Spy.Win32.Flux [Ikarus]
3	%Temp%\9.exe	1,794,872 bytes	MD5: 0xB183147B5AC71D4DD9F46C00EC65A45C SHA-1: 0x2F8B419A0E5C52C6C3618B765F991F7916D45781	Trojan.ADH [Symantec] Trojan-Downloader.Win32.Adload [Ikarus]
4	%Temp%\bassmod.dll	9,728 bytes	MD5: 0x780D14604D49E3C634200C523DEF8351 SHA-1: 0xE208EF6F421D2260070A9222F1F918F1DE0A8EEB	(not available)
5	%Temp%\Comic Sans MSComic Sans	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
6	[file and pathname of the sample #1]	4,576,257 bytes	MD5: 0x4550F0094E1A6EC45AEC94F1F4FF4DC3 SHA-1: 0x87D6EA1BD07F7FD2F08CA625C7C07714E55D24BE	Backdoor.Trojan [Symantec] Trojan-Downloader.Win32.Adload [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).

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
9.exe	%Temp%\9.exe	2,793,472 bytes
34.exe	%Temp%\34.exe	3,153,920 bytes
17.exe	%Temp%\17.exe	4,005,888 bytes

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{42DF899E-5E71-4592-37A5-AB09766E8D03}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{42DF899E-5E71-4592-37A5-AB09766E8D03}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{42DF899E-5E71-4592-37A5-AB09766E8D03}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{42DF899E-5E71-4592-37A5-AB09766E8D03}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{42DF899E-5E71-4592-37A5-AB09766E8D03}\Version
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C89B4A2B-8710-13F9-934D-68586098B1A9}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C89B4A2B-8710-13F9-934D-68586098B1A9}\1.0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C89B4A2B-8710-13F9-934D-68586098B1A9}\1.0\0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C89B4A2B-8710-13F9-934D-68586098B1A9}\1.0\0\win32
HKEY_CURRENT_USER\Software\ASProtect
HKEY_CURRENT_USER\Software\ASProtect\SpecData
HKEY_CURRENT_USER\Software\softorbits
HKEY_CURRENT_USER\Software\softorbits\PrivateAlbum

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{42DF899E-5E71-4592-37A5-AB09766E8D03}\Version]

(Default) = "0.0"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{42DF899E-5E71-4592-37A5-AB09766E8D03}\TypeLib]

(Default) = "{C89B4A2B-8710-13F9-934D-68586098B1A9}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{42DF899E-5E71-4592-37A5-AB09766E8D03}\ProgID]

(Default) = "PropertyValue"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{42DF899E-5E71-4592-37A5-AB09766E8D03}\InprocServer32]

(Default) = "activeds.dll"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{42DF899E-5E71-4592-37A5-AB09766E8D03}]

(Default) = "Neviha Ekevoti Bosofniri"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C89B4A2B-8710-13F9-934D-68586098B1A9}\1.0\0\win32]

(Default) = "dskquota.dll"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C89B4A2B-8710-13F9-934D-68586098B1A9}\1.0\0]

(Default) = ""

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C89B4A2B-8710-13F9-934D-68586098B1A9}\1.0]

(Default) = "Microsoft Disk Quota 1.0"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C89B4A2B-8710-13F9-934D-68586098B1A9}]

(Default) = ""

[HKEY_CURRENT_USER\Software\ASProtect\SpecData]

(Default) = "80D63F9780D63F97"
80D63F9780D63F97 = D6 5F B1 6A 25 DA B9 7E 11 D7 A0 6D 57 A7 B5 FA 7B E3 DB 69 70 0F 91 33 DC 5F 77 9F DC 14 1F 36 85 B9 00 8C D3 2E 31 BB C4 0A 80 7A 3F B2 5A 08 BB DE ED 2D BF 9F AD 22 D0 6A D5 E5 D9 41 08 3A 0F 33 0C 92 0B 8C 5B 4D 22 3A 0B D2 7F A0 72 F1 70 EA 55 7

Other details

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

	United Kingdom
	Russian Federation

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