ThreatExpert Report

Submission Summary:

Submission details:

Submission received: 10 September 2012, 11:44:37
Processing time: 7 min 47 sec
Submitted sample:

File MD5: 0xB0F83120BC5D11DF1586774030810FA0
File SHA-1: 0x5A2A724D3F91FC7E33C1AF2A6EDAAA39436F2209
Filesize: 155,726 bytes

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Installs a default debugger that is injected into the execution sequence of a target application. If a threat is installed as a default debugger, it will be run every time a target application is attempted to be launched - either to mimic it and hide its own presence (e.g. an open port or a running process), or simply to be activated as often as possible.

Technical Details:

File System Modifications

The following file was created in the system:

#	Filename(s)	File Size	File Hash
1	%System%\defs.exe [file and pathname of the sample #1]	155,726 bytes	MD5: 0xB0F83120BC5D11DF1586774030810FA0 SHA-1: 0x5A2A724D3F91FC7E33C1AF2A6EDAAA39436F2209

Note:

%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 was a new process created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	1,052,672 bytes

There was a new memory page created in the address space of the system process(es):

Process Name	Process Filename	Allocated Size
svchost.exe	%System%\svchost.exe	372,736 bytes

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\83F20BB1
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\userinit.exe

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\83F20BB1]

(Default) = 5E EF DF 48 3B 6C CB 47 20 87 D9 34 E4 17 CB 26 CC 8A E8 30 6C 10 1D 20 8B B8 0D 26 2B 2D 38 31 66 AA 3B 40 C7 57 27 3F 28 D5 12 3E 89 52 FE 3C EA A9 86 57 24 23 BA 14 CF A5 AD 16 7F 2C CF 17 09 AC F3 19 BF 2A F3 36 40 C0 1E 35 91 3D 5A 34 F2 BA 45 3
441D = EC FD FB FC F1 D7 FB E9 E6 EC E5 E9 E6 E6 C8 FB E7 E5 ED EC E7 E5 E9 E1 E6 A6 EB E7 E5 AB ED E9 FB FC E7 E6 D7 FF ED FB FC C8 EE E9 E3 ED EC E7 E5 E9 E1 E6 A6 EB E7 E5 AB E2 FD FB FC E1 E6 D7 EB E9 FB ED C8 FB E7 E5 ED F8 E4 E9 EB ED A6 EB E7 E5 AB F
CA79 = 0x00000000

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\userinit.exe]

Debugger = "defs.exe"

so that defs.exe is injected into the execution sequence of userinit.exe by being installed as its default debugger

[HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings]

ProxyEnable = 0x00000000
GlobalUserOffline = 0x00000000

[HKEY_CURRENT_USER\Identities]

Identity Login = 0x00098053

The following Registry Values were modified:

[HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]

Cookies =
Cache =
History =

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3]

1609 =

Other details

To mark the presence in the system, the following Mutex objects were created:

MPSWabDataAccessMutex
MPSWABOlkStoreNotifyMutex
MSIdent Logon
F6D8C4FA

The following Host Names were requested from a host database:

192.5.5.241
google.com

The following Internet Connections were established:

Server Name	Server Port	Connect as User	Connection Password
morepic.net	80	(null)	(null)
folono.com	80	(null)	(null)
diverband.com	80	(null)	(null)
igoubpawr.myftp.org	80	(null)	(null)
udigtebvoh.my03.com	80	(null)	(null)
whyvodovm.mrbasic.com	80	(null)	(null)

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