Gen.Variant.Adware.Barys.2471_9066bf885c

by malwarelabrobot on September 18th, 2014 in Malware Descriptions.

HEUR:Trojan.Win32.Generic (Kaspersky), Gen:Variant.Adware.Barys.2471 (B) (Emsisoft), Gen:Variant.Adware.Barys.2471 (AdAware), Worm.Win32.Ainslot.VB.FD, GenericAutorunWorm.YR, WormAinslot_VariantOfZeus.YR (Lavasoft MAS)
Behaviour: Trojan, Worm, Adware, WormAutorun


The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

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Summary
Dynamic Analysis
Static Analysis
Network Activity
Map
Strings from Dumps
Removals

MD5: 9066bf885cd72e46771654d0d8be15d3
SHA1: 13afce866b59c99fa0319b7f204e6b6828d4b22c
SHA256: ad90872dfd4b64dfbff9c38d36bd8b1fdb4173a14e84ad9d151d56d36dc87d08
SSDeep: 6144:Cz glrx25snmJr/TqRd4y/Nns9ImK BqIbsJHo57:Cz glrxcsnor/mRGmsCt BqFxod
Size: 206336 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: MicrosoftVisualC, NETexecutable, UPolyXv05_v6
Company: no certificate found
Created at: 2011-12-30 04:56:06
Analyzed on: WindowsXP SP3 32-bit


Summary:

Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

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):

%original file name%.exe:560
SiaPort.exe:1516

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

mvscavAP.exe:2016
SiaPort.exe:2020
explorer.exe:2032

Mutexes

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

File activity

The process %original file name%.exe:560 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Templates\explorer.exe (1281 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\SysInfo.txt (39 bytes)

The process SiaPort.exe:2020 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\SysInfo.txt (68 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Templates\explorer.exe (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\SysInfo.txt (0 bytes)

Registry activity

The process %original file name%.exe:560 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "14 20 C8 26 89 6C 23 53 8D 39 64 75 64 14 B4 69"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Templates" = "%Documents and Settings%\%current user%\Templates"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%\Templates]
"explorer.exe" = "explorer"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\My Documents"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

"IntranetName" = "1"

The process mvscavAP.exe:2016 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "31 9D C8 E1 89 FA 1F C5 DA E6 FD 4A 4B 37 A6 9A"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[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\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%\Local Settings\Temp\System]
"SiaPort.exe" = "SiaPort"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

"UNCAsIntranet" = "1"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

"IntranetName" = "1"

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]
"Microsoft® Windows® Operating System" = "%Documents and Settings%\%current user%\Local Settings\Temp\System\mvscavAP.exe"

The process SiaPort.exe:1516 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "DE E2 64 A1 EF A2 DF 17 35 A3 AE C0 34 A1 3F 4D"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

The process SiaPort.exe:2020 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "14 D5 CE 93 5A 9C 9F E4 CC FA B7 F9 55 19 3C 4B"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Templates" = "%Documents and Settings%\%current user%\Templates"
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

Dropped PE files

MD5 File path
c203e138f460101f8af1314c0e817892 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\System\mvscavAP.exe

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.

VersionInfo

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text 8192 35620 35840 4.38046 c84942de199c23d68064717fcae78f09
.sdata 49152 153 512 1.53519 61acae9763befbc2c2231d5cbc058534
.rsrc 57344 168328 168448 5.54172 61825a34586e4774c21284b70e4840f7
.reloc 229376 12 512 0.056519 5ca2887a74ec4194a0a8e113724875d1

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

explorer.exe_2032_rwx_00CF0000_00003000:

.nCy3

explorer.exe_1692:

`.rsrc
WebHide_
s|I.ql
bss_server.usrReverseRelay
tmrWebHide
bss_server.Socket
bss_server.usrRelay
mswinsck.ocx
MSWinsockLib.Winsock
ieframe.dll
SHDocVwCtl.WebBrowser
WebBrowser
modLaunchWeb
%Program Files% (x86)\Microsoft Visual Studio\VB98\VB6.OLB
C:\Windows\SysWOW64\ieframe.dll
winmm.dll
user32.dll
advapi32.dll
shell32.dll
kernel32.dll
avicap32.dll
advpack.dll
GetAsyncKeyState
SetWindowsHookExA
UnhookWindowsHookEx
GetKeyboardLayout
GetKeyboardState
GetKeyState
PSAPI.DLL
SHFileOperationA
CreatePipe
CHAT_ADDMSG
GetTcpTable
ExitWindowsEx
EnumWindows
WinInet.dll
DeleteUrlCacheEntryA
urlmon
URLDownloadToFileA
ShellExecuteA
keybd_event
VBA6.DLL
C:\Windows\SysWow64\msvbvm60.dll\3
ws2_32.dll
AddMsg
GdiplusShutdown
RemotePort
LocalPort
WSOCK32.DLL
RegCloseKey
RegOpenKeyExA
ntdll.dll
*wC:\Windows\SysWOW64\ieframe.oca
UDPSocket
J%Program Files% (x86)\Microsoft Visual Studio\VB98\vbc14663.oca
tmrTCP
tmrUDP
UDPFlood
ole32.dll
crypt32.dll
oleaut32.dll
RegOpenKeyA
FindNextUrlCacheEntryA
FindFirstUrlCacheEntryA
imgLoginPressed
imgLogin
txtPassword
RegCreateKeyA
RegDeleteKeyA
RegEnumKeyExA
gdi32.dll
olepro32.dll
InternetOpenUrlA
FtpGetFileA
FtpPutFileA
FtpSetCurrentDirectoryA
FtpGetCurrentDirectoryA
FtpOpenFileA
FtpGetDirectory
Http_DownloadFile
FtpGetFileSize
FtpDeleteFileA
FtpCreateDirectoryA
FtpRemoveDirectoryA
FtpRenameFileA
FtpDownload
FtpUpload
cmdShowfiles
msvbvm60.dll
?8??8??8??8??8?
.QX0WPp
uMsg
strMsg
MsgNum
AllMsgs
lngPort
URL_TARGET
Port
Password
WebURL
Returns/Sets the port to be connected to on the remote computer
Returns/Sets the port used on the local computer
Binds socket to specific port and adapter
Occurs after a send operation has completed
.text
`.data
.rsrc
317242744
Dl.jD
KERNEL32.DLL
MSVBVM60.DLL
*\AC:\Users\Admin\Desktop_old\Blackshades project\Blackshades NET\server\server.vbp
2c49f800-c2dd-11cf-9ad6-0080c7e7b78d
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1) Gecko/20090612 Firefox/3.5
{00020404-0000-0000-C000-000000000046}
\nir_cmd.bss speak text
\nir_cmd.bss setsysvolume 65535
\nir_cmd.bss mutesysvolume 1
\nir_cmd.bss mutesysvolume 0
\nir_cmd.bss screensaver
\nir_cmd.bss monitor off
\nir_cmd.bss monitor on
PORT
TRANSFERPORT
SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\
Keylog
Wscript.Shell
HKEY_CLASSES_ROOT\HTTP\shell\open\command\
\winlogon.exe
iexplore.exe
hXXp://VVV.facebook.com/?ref=home
hXXp://VVV.facebook.com
ADVAPI32.dll
Windows Firewall/Internet Connection Sharing (ICS)
WebCamCapture
\Vuze\Azureus.exe
\LimeWire\LimeWire.exe
\uTorrent\uTorrent.exe
\uTorrent\uTorrent.exe /HIDE
\BitTorrent\bittorrent.exe
\MSWINSCK.OCX
\cmd.exe
\data.dat
\steam\steam.exe
nkey
dkey
regsvr32.exe
\pws_mail.bss
\pws_mess.bss
\pws_cdk.bss
\pws_ff.bss
\pws_chro.bss
\nir_cmd.bss
cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "
:*:Enabled:Windows Messanger" /f
winmgmts:{impersonationLevel=Impersonate}!\\.\root\cimv2
00000000
winmgmts:\\.\root\cimv2
Select * from Win32_Keyboard
api.ipinfodb.com
GET /v2/ip_query.php?key=
&timezone=off HTTP/1.1
Host: api.ipinfodb.com
GET /v2/ip_query_country.php?key=
Portable
winmgmts:\\.\root\SecurityCenter
\wallpaper.bmp
\wallpaper.jpg
WScript.Shell
WinServer 2003, Web Edition
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProductName
__oxFrame.class__
Scripting.FileSystemObject
Autorun.ini
{557CF401-1A04-11D3-9A73-0000F81EF32E}
{1D5BE4B5-FA4A-452D-9CDD-5DB35105E7EB}
Address family not supported by protocol family.
Operation already in progress.
Operation now in progress.
Socket operation on nonsocket.
Operation not supported.
Protocol family not supported.
Protocol not supported.
Socket type not supported.
Winsock.dll version out of range.
CSocketMaster.SocketExists
CSocketMaster.PostSocket
CSocketMaster.ConnectToIP
CSocketMaster.ResolveIfHostname
CSocketMaster.SendBufferedDataUDP
CSocketMaster.SendBufferedData
/stext mess.dat
abe2869f-9b47-4cd9-a358-c22904dba7f7
\mess.dat
/stext mail.dat
\mail.dat
/stext ffpw.dat
\ffpw.dat
Web Site
Password
/stext chro.dat
\chro.dat
Action URL
SOFTWARE\MICROSOFT\Windows NT\CurrentVersion
Windows
SOFTWARE\Classes\Applications\iexplore.exe\shell\open\command
http\shell\open\command
127.0.0.1
\dump.txt
\uTorrent\uTorrent.exe /DIRECTORY
255.255.255.255
finalizarprocessoportas
CONNECT %s:%i HTTP/1.0
SOFTWARE\Classes\http\shell\open\command
Software\Classes\http\shell\open\command
Software\Microsoft\Windows NT\CurrentVersion\SystemRestore
code.is.a.winner
Software\Microsoft\Windows\CurrentVersion\Uninstall\eMule
SOFTWARE\MICROSOFT\Windows NT\CurrentVersion\DigitalProductId
bps1.exe
bhookpl.dll
bnfa.exe
drvloadn.dll
drvloadx.dll
VNCHooks.dll
xr4tdwa.exe
shutdown.exe
TCnRawKeyBoard
HuntHTTPDownload
autorun.inf
hXXps://onlineeast#.bankofamerica.com
winlogon.exe
moz_logins
WEBCAMLIVE
explorer.exe
SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run
SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
\system32\userinit.exe,
notepad.exe
\system32\userinit.exe
steam.exe
hl.exe
hXXp:///
@*\AC:\Users\Admin\Desktop_old\Blackshades project\Blackshades NET\server\server.vbp


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:560
    SiaPort.exe:1516

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

    %Documents and Settings%\%current user%\Templates\explorer.exe (1281 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\SysInfo.txt (39 bytes)

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

    [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
    "Microsoft® Windows® Operating System" = "%Documents and Settings%\%current user%\Local Settings\Temp\System\mvscavAP.exe"

  5. Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
  6. Reboot the computer.

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

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