Gen.Trojan.Heur.AutoIT.112_c7ca44889b – Adaware

Dynamic Analysis

Payload

Behaviour	Description
WormAutorun	A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan's file once a user opens a drive's folder in Windows Explorer.

Process activity

The Trojan creates the following process(es):

server.exe:356
server.exe:2000
%original file name%.exe:260
%original file name%.exe:1300

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

iexplore.exe:1436

Mutexes

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

File activity

The process %original file name%.exe:1300 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

%Program Files%\xerox\server.exe (7433 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\XX--XX--XX.txt (235 bytes)

Registry activity

The process server.exe:356 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "56 EA 4B CA 86 73 62 18 8F 8A 8C A8 8C 4B 9C F7"

The process server.exe:2000 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "56 9B 20 38 62 D6 80 FC 37 6B 0D 5F F2 CE 6C 50"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

The process %original file name%.exe:260 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AD 90 CB A3 6D 4A 0D 28 25 33 B1 BD 3F 02 56 24"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

The process %original file name%.exe:1300 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "85 42 53 7D BF EA E4 98 29 EF E0 B7 22 77 BB 61"

[HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\{5XMJL8Q7-XE2M-6Q53-1M8F-5E1455G3U7H7}]
"StubPath" = "%Program Files%\xerox\server.exe Restart"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run]
"Policies" = "%Program Files%\xerox\server.exe"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run]
"Policies" = "%Program Files%\xerox\server.exe"

To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"HKCU" = "%Program Files%\xerox\server.exe"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"HKLM" = "%Program Files%\xerox\server.exe"

Dropped PE files

There are no dropped PE files.

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan's file once a user opens a drive's folder in Windows Explorer.

Removals

Remove it with Ad-Aware

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

Manual removal*

Terminate malicious process(es) (How to End a Process With the Task Manager):
server.exe:356
server.exe:2000
%original file name%.exe:260
%original file name%.exe:1300
Delete the original Trojan file.
Delete or disinfect the following files created/modified by the Trojan:
%Program Files%\xerox\server.exe (7433 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\XX--XX--XX.txt (235 bytes)
Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"HKCU" = "%Program Files%\xerox\server.exe"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"HKLM" = "%Program Files%\xerox\server.exe"
Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
Reboot the computer.

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

Static Analysis

VersionInfo

Company Name: Crisysom
Product Name: Autoinsp
Product Version: 1.1.22.12
Legal Copyright: Copyright 1999-2011
Legal Trademarks:
Original Filename: Avs-md.exe
Internal Name: AVI.exe
File Version: 1.23.11.21
File Description: Cys do it
Comments: JUSTDOIT
Language: Language Neutral

Company Name: CrisysomProduct Name: AutoinspProduct Version: 1.1.22.12Legal Copyright: Copyright 1999-2011Legal Trademarks: Original Filename: Avs-md.exeInternal Name: AVI.exeFile Version: 1.23.11.21File Description: Cys do itComments: JUSTDOITLanguage: Language Neutral

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	524311	524800	4.59897	0bda184f72f1ed7d06bfaedcda163796
.rdata	532480	55644	55808	3.37968	7db3b4e53789cbe5fa95c295560d76f2
.data	589824	107800	26624	1.5265	086359cf1d439ba74500bb6b8a8c5169
.rsrc	700416	68620	69120	3.58968	fd524618670049eaa0332357271463c7

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

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

Strings from Dumps

iexplore.exe_1436:

%?9-*09,*19}*09

.text

`.data

.rsrc

msvcrt.dll

KERNEL32.dll

NTDLL.DLL

USER32.dll

SHLWAPI.dll

SHDOCVW.dll

Software\Microsoft\Windows\CurrentVersion\Explorer\BrowseNewProcess

IE-X-X

rsabase.dll

System\CurrentControlSet\Control\Windows

dw15 -x -s %u

watson.microsoft.com

IEWatsonURL

%s -h %u

iedw.exe

Iexplore.XPExceptionFilter

jscript.DLL

mshtml.dll

mlang.dll

urlmon.dll

wininet.dll

shdocvw.DLL

browseui.DLL

comctl32.DLL

IEXPLORE.EXE

iexplore.pdb

ADVAPI32.dll

MsgWaitForMultipleObjects

IExplorer.EXE

IIIIIB(II<.fg>

7?_____ZZSSH%

)z.UUUUUUUU

,....Qym

````2```

{.QLQIIIKGKGKGKGKGKG

;33;33;0

8888880

8887080

browseui.dll

shdocvw.dll

6.00.2900.5512 (xpsp.080413-2105)

Windows

Operating System

6.00.2900.5512

iexplore.exe_1436_rwx_00150000_00001000:

KERNEL32.DLL

iexplore.exe_1436_rwx_00290000_00001000:

KERNEL32.DLL

iexplore.exe_1436_rwx_002D0000_00001000:

KERNEL32.DLL

iexplore.exe_1436_rwx_00310000_00001000:

KERNEL32.DLL

iexplore.exe_1436_rwx_00350000_00001000:

KERNEL32.DLL

iexplore.exe_1436_rwx_00390000_00001000:

KERNEL32.DLL

iexplore.exe_1436_rwx_00C40000_00001000:

advapi32.dll

iexplore.exe_1436_rwx_00D70000_00001000:

RegOpenKeyA

iexplore.exe_1436_rwx_00D80000_00001000:

advapi32.dll

iexplore.exe_1436_rwx_00DB0000_00001000:

AVICAP32.DLL

iexplore.exe_1436_rwx_00EF0000_00001000:

AVICAP32.DLL

iexplore.exe_1436_rwx_00F20000_00001000:

gdi32.dll

iexplore.exe_1436_rwx_00F60000_00001000:

gdi32.dll

iexplore.exe_1436_rwx_00F90000_00001000:

gdiplus.dll

iexplore.exe_1436_rwx_00FD0000_00001000:

gdiplus.dll

iexplore.exe_1436_rwx_01010000_00001000:

mpr.dll

iexplore.exe_1436_rwx_01060000_00001000:

mpr.dll

iexplore.exe_1436_rwx_01090000_00001000:

msacm32.dll

iexplore.exe_1436_rwx_014E0000_00001000:

msacm32.dll

iexplore.exe_1436_rwx_01510000_00001000:

ntdll.dll

iexplore.exe_1436_rwx_01650000_00001000:

ntdll.dll

iexplore.exe_1436_rwx_01680000_00001000:

ole32.dll

iexplore.exe_1436_rwx_017C0000_00001000:

ole32.dll

iexplore.exe_1436_rwx_017F0000_00001000:

oleaut32.dll

iexplore.exe_1436_rwx_01830000_00001000:

oleaut32.dll

iexplore.exe_1436_rwx_01970000_00001000:

powrprof.dll

iexplore.exe_1436_rwx_01AB0000_00001000:

powrprof.dll

iexplore.exe_1436_rwx_01AE0000_00001000:

shell32.dll

iexplore.exe_1436_rwx_01C20000_00001000:

shell32.dll

iexplore.exe_1436_rwx_01C50000_00001000:

user32.dll

iexplore.exe_1436_rwx_01D90000_00001000:

user32.dll

iexplore.exe_1436_rwx_01DC0000_00001000:

wininet.dll

iexplore.exe_1436_rwx_01EF0000_00001000:

FtpOpenFileA

iexplore.exe_1436_rwx_01F00000_00001000:

wininet.dll

iexplore.exe_1436_rwx_01F30000_00001000:

winmm.dll

iexplore.exe_1436_rwx_02070000_00001000:

winmm.dll

iexplore.exe_1436_rwx_020A0000_00001000:

wsock32.dll

iexplore.exe_1436_rwx_021E0000_00001000:

wsock32.dll

iexplore.exe_1436_rwx_24010000_00062000:

`.rsrc

/w)f%u/

kernel32.dll

SHFileOperationA

shell32.dll

URLDownloadToFileA

urlmon.dll

ShellExecuteA

SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders

GetWindowsDirectoryA

SOFTWARE\Microsoft\Windows\CurrentVersion

http\shell\open\command

\Internet Explorer\iexplore.exe

####@####

$*@@@*$@@@$ *@@* $@@($*)@-$*@@$-*@@$*-@@(*$)@-*$@@*-$@@*$-@@-* $@-$ *@* $-@$ *-@$ -*@*- $@($ *)(* $)

Portugal

Turkey

Windows 3.1

Windows 95 (Release 2)

Windows 95

Windows 98 SE

Windows 98

Windows ME

Windows 7

Windows Vista

%s %s

Windows XP Professional x64

Windows XP Home

Windows XP Professional

Windows 2000 Professional

Windows NT %d.%d

Windows 2008

%s %s Server

Windows 2003 Server Datacenter

Windows 2003 Server Enterprise

Windows 2003 Server Web Edition

Windows 2003 Server

Windows Home Server

Windows 2003 Server (Release 2)

Windows 2000 Server Datacenter

Windows 2000 Server Enterprise

Windows 2000 Server Web Edition

Windows 2000 Server

Windows NT 4.0 Server Datacenter

Windows NT 4.0 Server Enterprise

Windows NT 4.0 Server Web Edition

Windows NT 4.0 Server

Unknown Platform ID (%d)

%d.%d

%s (Build: %d

- Service Pack: %s

KERNEL32.DLL

teste.vbs

teste.txt

Set objSecurityCenter = GetObject("winmgmts:\\.\root\SecurityCenter")

Set colFirewall = objSecurityCenter.ExecQuery("Select * From FirewallProduct",,48)

Set colAntiVirus = objSecurityCenter.ExecQuery("Select * From AntiVirusProduct",,48)

Set objFileSystem = CreateObject("Scripting.fileSystemObject")

Set objFile = objFileSystem.CreateTextFile("

Info = Info & "F" & CountFw & ") " & objFirewall.displayName & " v" & objFirewall.versionNumber & Enter

Info = Info & "A" & CountAV & ") " & objAntiVirus.displayName & " v" & objAntiVirus.versionNumber & Enter

objFile.WriteLine(Info)

objFile.Close

cscript.exe

AVICAP32.dll

tFtpAccess

BuildImportTable: can't load library:

BuildImportTable: ReallocMemory failed

BuildImportTable: GetProcAddress failed

BTMemoryLoadLibary: BuildImportTable failed

BTMemoryGetProcAddress: no export table found

BTMemoryGetProcAddress: DLL doesn't export anything

BTMemoryGetProcAddress: exported symbol not found

SetupApi.dll

SetupDiOpenClassRegKey

SetupDiOpenClassRegKeyExA

SetupDiOpenClassRegKeyExW

SetupDiCreateDeviceInterfaceRegKeyA

SetupDiCreateDeviceInterfaceRegKeyW

SetupDiOpenDeviceInterfaceRegKey

SetupDiDeleteDeviceInterfaceRegKey

SetupDiCreateDevRegKeyA

SetupDiCreateDevRegKeyW

SetupDiOpenDevRegKey

SetupDiDeleteDevRegKey

CM_DEVCAP_LOCKSUPPORTED

CM_DEVCAP_EJECTSUPPORTED

PDCAP_D0_SUPPORTED

PDCAP_D1_SUPPORTED

PDCAP_D2_SUPPORTED

PDCAP_D3_SUPPORTED

PDCAP_WAKE_FROM_D0_SUPPORTED

PDCAP_WAKE_FROM_D1_SUPPORTED

PDCAP_WAKE_FROM_D2_SUPPORTED

PDCAP_WAKE_FROM_D3_SUPPORTED

PDCAP_WARM_EJECT_SUPPORTED

HKEY_CLASSES_ROOT

HKEY_CURRENT_CONFIG

HKEY_CURRENT_USER

HKEY_LOCAL_MACHINE

HKEY_USERS

127.0.0.1

iphlpapi.dll

AllocateAndGetTcpExTableFromStack

AllocateAndGetUdpExTableFromStack

SetTcpEntry

GetExtendedTcpTable

GetExtendedUdpTable

Mozilla3_5Password

GetChromePass

StartHttpProxy

1.2.3

XxX.xXx

UuU.uUu

keyboardkey

webcaminactive

webcamgetbuffer

webcam

enviarexecnormal

enviarexechidden

openweb

downexec

sendftp

keylogger

keyloggergetlog

keyloggereraselog

keyloggerativar

keyloggerdesativar

renamekey

windowsfechar

windowsmax

windowsmin

windowsmostrar

windowsocultar

windowsmintodas

windowscaption

listarportas

listarportasdns

finalizarprocessoportas

webcamsettings

chatmsg

SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\

PSAPI.dll

\config\SteamAppData.vdf

AutoLoginUser

/ClientRegistry.Blob

\ClientRegistry.blob

\steam.dll

%SYS%

ÃžSKTOP%

FirstExecution

chatmsg|

Software\Microsoft\Windows\CurrentVersion\Run

Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run

listarjanelas|windowsfechar|

listarjanelas|windowsmax|

listarjanelas|windowsmin|

listarjanelas|windowsmostrar|

listarjanelas|windowsocultar|

listarjanelas|windowsmintodas|

listarjanelas|windowscaption|

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

listarportas|listadeportaspronta|

listarportas|finalizarconexao|

listarportas|finalizarprocessoportas|Y|

listarportas|finalizarprocessoportas|N|

registro|renamekey|

keylogger|keylogger|keyloggerativar|

keylogger|keylogger|keyloggerdesativar|

keylogger|keyloggergetlog|

keylogger|keylogger|keyloggervazio|

keyloggersearch

keyloggersearchok|

webcam|webcaminactive|

webcam|webcamactive|

getpassword

_x_X_PASSWORDLIST_X_x_

NOIP.abc

MSN.abc

FIREFOX.abc

IELOGIN.abc

IEPASS.abc

IEAUTO.abc

IEWEB.abc

SOFTWARE\Mozilla\Mozilla Firefox

getfirefox

getielogin

getiepass

getieweb

getchrome

getpassword|getpasswordlist|

getpassword|getpassworderror|

updateservidorweb

##@@## ##@@## ##@@##

Windows\CurrentVersion\Uninstall\eDonkey2000

UNWISE.EXE

ntdll.dll

icon=shell32.dll,4

shellexecute=

autorun.inf

XX--XX--XX.txt

logs.dat

SQLite3.dll

$1.2.3

KWindows

UnitExecutarComandos

uftp

UrlMon

.UnitBytesSize

UnitListarPortasAtivas

UnitWebcam

UnitKeylogger

WinExec

SetNamedPipeHandleState

GetProcessHeap

CreatePipe

RegOpenKeyExA

RegOpenKeyA

RegEnumKeyExA

RegDeleteKeyA

RegCreateKeyA

RegCloseKey

GdiplusShutdown

keybd_event

MapVirtualKeyA

GetKeyboardState

GetKeyboardLayoutNameA

GetKeyState

GetAsyncKeyState

ExitWindowsEx

EnumWindows

FtpGetFileSize

FtpSetCurrentDirectoryA

FtpOpenFileA

%( % & % % % ]

.idata

.reloc

P.rsrc

advapi32.dll

AVICAP32.DLL

gdi32.dll

gdiplus.dll

mpr.dll

msacm32.dll

ole32.dll

oleaut32.dll

powrprof.dll

user32.dll

wininet.dll

winmm.dll

wsock32.dll

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps