MD5: 68e1299b7b9403e050e018100cc05b15
SHA1: 6b0856272981062e7dd93bc36a1845d1d53de4d2
SHA256: 7c2db7fdabb97df142f79161ce6823e8d07dbcb758d63ad42d05d4bdac2fec91
SSDeep: 196608:8jd FtxIpeDfmonSWkHRNYj6YUyB5FMqQyUTny0 C2Sct8/rhRGxOyKhM8lW m:8pZ0nBuYj6j25FKivtQjGly0 m
Size: 13464064 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: Mail.Ru
Created at: 2016-06-28 21:46:07
Analyzed on: Windows7 SP1 32-bit

Summary:

Worm. A program that is primarily replicating on networks or removable drives.

Payload

No specific payload has been found.

Process activity

The Worm creates the following process(es):

%original file name%.exe:2692
NvBackstart.exe:4000

The Worm injects its code into the following process(es):

keygen.exe:816

Mutexes

The following mutexes were created/opened:
No objects were found.

File activity

The process %original file name%.exe:2692 makes changes in the file system.
The Worm creates and/or writes to the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut84DB.tmp (5065 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\install_log.txt (752 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\keygen.exe (804 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut7D3B.tmp (588 bytes)
%Program Files%\NVIDIA Corporation\NetService\Update Core\NvBackstart.exe (95062 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut7EC2.tmp (96293 bytes)

The Worm deletes the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut7EC2.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut7D3B.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut84DB.tmp (0 bytes)

The process NvBackstart.exe:4000 makes changes in the file system.
The Worm creates and/or writes to the following file(s):

%Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\Qt5Core.dll (42240 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9685.tmp (32446 bytes)
%Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\msvcr110.dll (8641 bytes)
%Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\cudart64_60.dll (2865 bytes)
%Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\Qt5WebSockets.dll (2113 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut982E.tmp (2809 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut97A0.tmp (1761 bytes)
%Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\NVidia Update Drivers.exe (29430 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9A95.tmp (1569 bytes)
%Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\Qt5Network.dll (9425 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9751.tmp (6993 bytes)
%Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\msvcp110.dll (6897 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9A25.tmp (5889 bytes)
%Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\ssleay32.dll (3313 bytes)
%Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\libeay32.dll (13401 bytes)
%Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\platforms\qwindows.dll (9369 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9A64.tmp (1137 bytes)
%Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\vccorlib110.dll (3505 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut98FB.tmp (24622 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\service.txt (1470 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut98BC.tmp (4969 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut97B1.tmp (9049 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9A75.tmp (2425 bytes)

The Worm deletes the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut98BC.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut982E.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut97A0.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9A25.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut97B1.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9A75.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9A95.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9685.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9751.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9A64.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut98FB.tmp (0 bytes)

Registry activity

The process %original file name%.exe:2692 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
To automatically run itself each time Windows is booted, the Worm adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"NVIDIA NetService" = "%Program Files%\NVIDIA Corporation\NetService\Update Core\NvBackstart.exe"

"Java(TM) Platform SE" = "%Program Files%\Java\java_vm.exe"

Dropped PE files

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

Company Name:
Product Name:
Product Version:
Legal Copyright:
Legal Trademarks:
Original Filename:
Internal Name:
File Version:
File Description:
Comments:
Language: Language Neutral

PE Sections

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

The Worm connects to the servers at the folowing location(s):

`.rsrc

Ð2x

DVD to WebM Converter

WebM Converter 3

285E-F5C1-1544-A150-CC27-3D9B-6C75-317B

BLiZZARD KEYGEN

.idata

.reloc

P.rsrc

eoa0=)9 

KERNEL32.DLL

GDI32.DLL

USER32.DLL

BIGASOFT ALL PRODUCTS KEYGEN V1.2

keygen.exe_816_rwx_00401000_00029000:

DVD to WebM Converter

WebM Converter 3

285E-F5C1-1544-A150-CC27-3D9B-6C75-317B

BLiZZARD KEYGEN

.idata

.reloc

P.rsrc

eoa0=)9 

BIGASOFT ALL PRODUCTS KEYGEN V1.2

NvBackstart.exe_4000:

.text

`.rdata

@.data

.rsrc

@.reloc

j.Yf;

r%f;M

j.Xf;

j.Zf;

PSSSSSSh

Gt.Ht$

.ku`8iu~fiu

kernel32.dll

?#%X.y

GetProcessWindowStation

operator

operand of unlimited repeat could match the empty string

POSIX named classes are supported only within a class

erroffset passed as NULL

POSIX collating elements are not supported

this version of PCRE is compiled without UTF support

PCRE does not support \L, \l, \N{name}, \U, or \u

support for \P, \p, and \X has not been compiled

this version of PCRE is not compiled with Unicode property support

\N is not supported in a class

RegDeleteKeyExW

advapi32.dll

Error text not found (please report)

WSOCK32.dll

VERSION.dll

WINMM.dll

COMCTL32.dll

MPR.dll

InternetCrackUrlW

HttpQueryInfoW

HttpOpenRequestW

HttpSendRequestW

FtpOpenFileW

FtpGetFileSize

InternetOpenUrlW

WININET.dll

PSAPI.DLL

IPHLPAPI.DLL

USERENV.dll

UxTheme.dll

GetProcessHeap

CreatePipe

GetWindowsDirectoryW

KERNEL32.dll

OpenWindowStationW

SetProcessWindowStation

CloseWindowStation

MapVirtualKeyW

EnumChildWindows

EnumWindows

VkKeyScanW

GetKeyState

GetKeyboardState

SetKeyboardState

GetAsyncKeyState

keybd_event

EnumThreadWindows

ExitWindowsEx

UnregisterHotKey

RegisterHotKey

GetKeyboardLayoutNameW

USER32.dll

SetViewportOrgEx

GDI32.dll

COMDLG32.dll

RegOpenKeyExW

RegCloseKey

RegCreateKeyExW

RegEnumKeyExW

RegDeleteKeyW

ADVAPI32.dll

ShellExecuteW

SHFileOperationW

ShellExecuteExW

SHELL32.dll

ole32.dll

OLEAUT32.dll

GetCPInfo

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<assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" language="*" processorArchitecture="*" publicKeyToken="6595b64144ccf1df"/>
<requestedExecutionLevel level="requireAdministrator" uiAccess="false"/>
<supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/>
<supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
<supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
<supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
<supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
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CMDLINE
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>>>AUTOIT NO CMDEXECUTE<<<
FTPSETPROXY
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GUIGETMSG
GUIREGISTERMSG
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HTTPSETUSERAGENT
ISKEYWORD
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UDPOPEN
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UDPSTARTUP
SendKeyDownDelay
SendKeyDelay
TCPTimeout
mscoree.dll
combase.dll
- floating point support not loaded
- CRT not initialized
- Attempt to initialize the CRT more than once.
USER32.DLL
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APPSKEY
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AUTOITEXE
HOTKEYPRESSED
%s (%d) : ==> %s.:
Line %d:
Line %d (File "%s"):
%s (%d) : ==> %s:
AutoIt script files (*.au3, *.a3x)
*.au3;*.a3x
All files (*.*)
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Keyword
AUTOIT.ERROR
Null Object assignment in FOR..IN loop
Incorrect Object type in FOR..IN loop
3, 3, 14, 2
HKEY_LOCAL_MACHINE
HKEY_CLASSES_ROOT
HKEY_CURRENT_CONFIG
HKEY_CURRENT_USER
HKEY_USERS
%d/d/d
%Program Files%\NVIDIA Corporation\NetService\Update Core\NvBackstart.exe
AutoIt supports the __stdcall (WINAPI) and __cdecl calling conventions. The __stdcall (WINAPI) convention is used by default but __cdecl can be used instead. See the DllCall() documentation for details on changing the calling convention.
Missing operator in expression."Unbalanced brackets in expression.
Error parsing function call.0Incorrect number of parameters in function call.'"ReDim" used without an array variable.>Illegal text at the end of statement (one statement per line).1"If" statement has no matching "EndIf" statement.1"Else" statement with no matching "If" statement.2"EndIf" statement with no matching "If" statement.7Too many "Else" statements for matching "If" statement.3"While" statement has no matching "Wend" statement.4"Wend" statement with no matching "While" statement.%Variable used without being declared.XArray variable has incorrect number of subscripts or subscript dimension range exceeded.#Variable subscript badly formatted.*Subscript used on non-accessible variable.&Too many subscripts used for an array.0Missing subscript dimensions in "Dim" statement.NNo variable given for "Dim", "Local", "Global", "Struct" or "Const" statement.
0Expected a "=" operator in assignment statement.*Invalid keyword at the start of this line.
Invalid element in a DllStruct.*Unknown option or bad parameter specified.&Unable to load the internet libraries./"Struct" statement has no matching "EndStruct".HUnable to open file, the maximum number of open files has been exceeded.K"ContinueLoop" statement with no matching "While", "Do" or "For" statement.
Invalid file filter given.*Expected a variable in user function call.1"Do" statement has no matching "Until" statement.2"Until" statement with no matching "Do" statement.#"For" statement is badly formatted.2"Next" statement with no matching "For" statement.N"ExitLoop/ContinueLoop" statements only valid from inside a For/Do/While loop.1"For" statement has no matching "Next" statement.@"Case" statement with no matching "Select"or "Switch" statement.:"EndSelect" statement with no matching "Select" statement.ORecursion level has been exceeded - AutoIt will quit to prevent stack overflow.&Cannot make existing variables static.4Cannot make static variables into regular variables.
3This keyword cannot be used after a "Then" keyword.>"Select" statement is missing "EndSelect" or "Case" statement. "If" statements must have a "Then" keyword. Badly formated Struct statement."Cannot assign values to constants..Cannot make existing variables into constants.9Only Object-type variables allowed in a "With" statement.v"long_ptr", "int_ptr" and "short_ptr" DllCall() types have been deprecated. Use "long*", "int*" and "short*" instead.-Object referenced outside a "With" statement.)Nested "With" statements are not allowed."Variable must be of type "Object".1The requested action with this object has failed.8Variable appears more than once in function declaration.2ReDim array can not be initialized in this manner.1An array variable can not be used in this manner.
Can not redeclare a constant.5Can not redeclare a parameter inside a user function.HCan pass constants by reference only to parameters with "Const" keyword.*Can not initialize a variable with itself.$Incorrect way to use this parameter.:"EndSwitch" statement with no matching "Switch" statement.>"Switch" statement is missing "EndSwitch" or "Case" statement.H"ContinueCase" statement with no matching "Select"or "Switch" statement.
String missing closing quote.!Badly formated variable or macro.*Missing separator character after keyword.

Remove it with Ad-Aware

1. Click (here) to download and install Ad-Aware Free Antivirus.
2. Update the definition files.
3. Run a full scan of your computer.

Manual removal*

1. Terminate malicious process(es) (How to End a Process With the Task Manager):
   

   %original file name%.exe:2692
   NvBackstart.exe:4000

2. Delete the original Worm file.
   
3. Delete or disinfect the following files created/modified by the Worm:
   

   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut84DB.tmp (5065 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\install_log.txt (752 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\keygen.exe (804 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut7D3B.tmp (588 bytes)
   %Program Files%\NVIDIA Corporation\NetService\Update Core\NvBackstart.exe (95062 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut7EC2.tmp (96293 bytes)
   %Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\Qt5Core.dll (42240 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9685.tmp (32446 bytes)
   %Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\msvcr110.dll (8641 bytes)
   %Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\cudart64_60.dll (2865 bytes)
   %Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\Qt5WebSockets.dll (2113 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut982E.tmp (2809 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut97A0.tmp (1761 bytes)
   %Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\NVidia Update Drivers.exe (29430 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9A95.tmp (1569 bytes)
   %Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\Qt5Network.dll (9425 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9751.tmp (6993 bytes)
   %Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\msvcp110.dll (6897 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9A25.tmp (5889 bytes)
   %Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\ssleay32.dll (3313 bytes)
   %Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\libeay32.dll (13401 bytes)
   %Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\platforms\qwindows.dll (9369 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9A64.tmp (1137 bytes)
   %Program Files%\NVIDIA Corporation\NetService\Update Core\ConsolX64\vccorlib110.dll (3505 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut98FB.tmp (24622 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\service.txt (1470 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut98BC.tmp (4969 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut97B1.tmp (9049 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\aut9A75.tmp (2425 bytes)

4. Delete the following value(s) in the autorun key (How to Work with System Registry):
   

   [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   "NVIDIA NetService" = "%Program Files%\NVIDIA Corporation\NetService\Update Core\NvBackstart.exe"
   
   [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   "Java(TM) Platform SE" = "%Program Files%\Java\java_vm.exe"

5. Reboot the computer.
   

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.