Win32.Sality.OG_3c61cb16da

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 Worm's file once a user opens a drive's folder in Windows Explorer.

Process activity

The Worm creates the following process(es):

statisticsStub.:272
netsh.exe:320

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

%original file name%.exe:1572
Explorer.EXE:512

Mutexes

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

File activity

The process statisticsStub.:272 makes changes in the file system.

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

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4DQJW9YN\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nseB6.tmp\InetC.dll (24 bytes)
C:\END (9 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4DQJW9YN\usage[1].ashx (9 bytes)

The Worm deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nseB6.tmp\InetC.dll (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nseB6.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nseB6.tmp\1 (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\conduitStatistics.csf (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsjB5.tmp (0 bytes)

The process %original file name%.exe:1572 makes changes in the file system.

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

%WinDir%\system.ini (74 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\statisticsstub[1].exe (6340 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsoB3.tmp\System.dll (11 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\001DF1A6_Rar\%original file name%.exe (673 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsoB3.tmp\nsB4.tmp (6 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsoB3.tmp\InetC.dll (24 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsoB3.tmp\nsExec.dll (6 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\statisticsStub.exe (6340 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\conduitStatistics.csf (1475 bytes)

The Worm deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nsoB3.tmp\System.dll (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsoB3.tmp\nsB4.tmp (0 bytes)
C:\1df928 (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsoB3.tmp\InetC.dll (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsoB3.tmp\nsExec.dll (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsoB3.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nszB2.tmp (0 bytes)

Registry activity

The process statisticsStub.:272 makes changes in the system registry.

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

[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nseB6.tmp\,"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 17 00 00 00 01 00 00 00 00 00 00 00"

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

[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\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

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

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "8B D0 96 FE 4C 31 AA 13 DA C7 A3 0F 40 27 6A 10"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

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

[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"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

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

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

"ProxyBypass" = "1"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

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

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

The Worm deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

The process netsh.exe:320 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy\traceIdentifier]
"Guid" = "5f31090b-d990-4e91-b16d-46121d0255aa"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\qagent]
"Active" = "1"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil\traceIdentifier]
"Guid" = "8aefce96-4618-42ff-a057-3536aa78233e"

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DoNotAllowExceptions" = "0"

[HKLM\SOFTWARE\Microsoft\Tracing\FWCFG]
"MaxFileSize" = "1048576"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\NAP\Netsh]
"ControlFlags" = "1"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\qagent]
"ControlFlags" = "1"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\NAP\Netsh]
"Active" = "1"

[HKLM\SOFTWARE\Microsoft\Tracing\FWCFG]
"ConsoleTracingMask" = "4294901760"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\NAP\Netsh\Napmontr]
"BitNames" = " NAP_TRACE_BASE NAP_TRACE_NETSH"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"Active" = "1"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg]
"Active" = "1"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg]
"ControlFlags" = "1"

[HKLM\SOFTWARE\Microsoft\Tracing\FWCFG]
"EnableFileTracing" = "0"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg]
"LogSessionName" = "stdout"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\NAP\Netsh\Napmontr]
"Guid" = "710adbf0-ce88-40b4-a50d-231ada6593f0"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil]
"Active" = "1"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"LogSessionName" = "stdout"
"ControlFlags" = "1"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\qagent\traceIdentifier]
"Guid" = "b0278a28-76f1-4e15-b1df-14b209a12613"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg\traceIdentifier]
"Guid" = "5f31090b-d990-4e91-b16d-46121d0255aa"

[HKLM\SOFTWARE\Microsoft\Tracing\FWCFG]
"EnableConsoleTracing" = "0"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "B3 9E 04 EB 4D 48 10 14 E4 88 9F F8 C1 0F 98 B9"

[HKLM\SOFTWARE\Microsoft\Tracing\FWCFG]
"FileDirectory" = "%windir%\tracing"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil]
"LogSessionName" = "stdout"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\qagent]
"LogSessionName" = "stdout"

[HKLM\SOFTWARE\Microsoft\Tracing\FWCFG]
"FileTracingMask" = "4294901760"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\NAP\Netsh]
"LogSessionName" = "stdout"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\qagent\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil]
"ControlFlags" = "1"

A firewall is disabled:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"EnableFirewall" = "0"

The process %original file name%.exe:1572 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Security Center]
"UacDisableNotify" = "1"

[HKCU\Software\adm914]
"a1_2" = "725158170"

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

[HKCU\Software\adm914]
"a3_2" = "31040235"
"a1_3" = "1782450922"
"a4_0" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKCU\Software\adm914]
"a1_0" = "3432392762"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 16 00 00 00 01 00 00 00 00 00 00 00"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system]
"EnableLUA" = "0"

[HKCU\Software\adm914]
"a4_3" = "21507363"
"a4_2" = "14338242"
"a4_1" = "7169121"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"GlobalUserOffline" = "0"

[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nseB6.tmp\, , \??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsoB3.tmp\,"

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

[HKLM\SOFTWARE\Microsoft\Security Center]
"AntiVirusOverride" = "1"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"UpdatesDisableNotify" = "1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableRegistryTools" = "1"

[HKCU\Software\adm914\695404737]
"43014726" = "0400687474703A2F2F38392E3131392E36372E3135342F746573746F352F00687474703A2F2F6B756B7574727573746E65743737372E696E666F2F686F6D652E67696600687474703A2F2F6B756B7574727573746E65743838382E696E666F2F686F6D652E67696600687474703A2F2F6B756B7574727573746E65743938372E696E666F2F686F6D652E67696600"

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

[HKCU\Software\adm914\695404737]
"14338242" = "0"

[HKLM\SOFTWARE\Microsoft\Security Center]
"FirewallOverride" = "1"

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

[HKCU\Software\adm914\695404737]
"7169121" = "1"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"FirewallDisableNotify" = "1"

[HKCU\Software\adm914\695404737]
"35845605" = "143"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"UacDisableNotify" = "1"

[HKCU\Software\adm914]
"a1_1" = "643681716"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"Hidden" = "2"

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"FirewallOverride" = "1"

[HKCU\Software\adm914\695404737]
"28676484" = "30"

[HKCU\Software\adm914]
"a3_0" = "17001001"
"a3_1" = "23989832"

[HKLM\SOFTWARE\Microsoft\Security Center]
"FirewallDisableNotify" = "1"

[HKCU\Software\adm914]
"a3_3" = "4933386"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKCU\Software\adm914\695404737]
"50183847" = "7439D18CF99ADB97C70A1EA4EA1DDEB3A46AF9AF9995ACD22104A39789171EB3633818AD029260106FF7F47FE0DE6244028206B85FFFAD226E9742031F5914A424C8AAD11CCC09A683D5C288F7B6E1F47648BB6509895D8CEFEAA4FC96A6440B61FA7545CEB6A4B60F5D6273763CD021B75224603D4E837AD74FFC1C93A050D600"

[HKCU\Software\adm914]
"a2_1" = "7173761"
"a2_0" = "5517"
"a2_3" = "21509101"
"a2_2" = "14342466"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "43 20 01 D8 DF 52 5B 15 76 E5 ED 0A CD 9B A8 D6"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

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

[HKCU\Software\adm914\695404737]
"21507363" = "0"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Security Center]
"UpdatesDisableNotify" = "1"

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

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"AntiVirusOverride" = "1"

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

Adds a rule to the firewall Windows which allows any network activity:

[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\c:]
"%original file name%.exe" = "c:\%original file name%.exe:*:Enabled:ipsec"

The Worm 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"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

Antivirus notifications are disabled:

[HKLM\SOFTWARE\Microsoft\Security Center]
"AntiVirusDisableNotify" = "1"

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

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

The Worm 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"

Antivirus notifications are disabled:

[HKLM\SOFTWARE\Microsoft\Security Center\Svc]
"AntiVirusDisableNotify" = "1"

Task Manager is disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableTaskMgr" = "1"

The Worm deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

Dropped PE files

MD5	File path
9954bdf0d57b7cd53c5434360ce4923f	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\001DF1A6_Rar\%original file name%.exe
6a0f411ca91a97a709b98e114f4052d5	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\statisticsStub.exe
6a0f411ca91a97a709b98e114f4052d5	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\statisticsstub[1].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 Worm's file once a user opens a drive's folder in Windows Explorer.

Removals

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):

   statisticsStub.:272
   netsh.exe:320
   

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

   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4DQJW9YN\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nseB6.tmp\InetC.dll (24 bytes)
   C:\END (9 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\4DQJW9YN\usage[1].ashx (9 bytes)
   %WinDir%\system.ini (74 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\statisticsstub[1].exe (6340 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsoB3.tmp\System.dll (11 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\001DF1A6_Rar\%original file name%.exe (673 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsoB3.tmp\nsB4.tmp (6 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsoB3.tmp\InetC.dll (24 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsoB3.tmp\nsExec.dll (6 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\statisticsStub.exe (6340 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\conduitStatistics.csf (1475 bytes)

4. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
   
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.

Static Analysis

VersionInfo

Company Name: Conduit
Product Name:
Product Version:
Legal Copyright: Conduit Ltd.
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 5.7.4.0
File Description:
Comments:
Language: English (United States)

Company Name: ConduitProduct Name: Product Version: Legal Copyright: Conduit Ltd.Legal Trademarks: Original Filename: Internal Name: File Version: 5.7.4.0File Description: Comments: Language: English (United States)

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	29324	29696	4.51998	1f4aa5e35db2d1893ac5a7044048d07d
.rdata	36864	11118	11264	3.11773	cca1ca3fbf99570f6de9b43ce767f368
.data	49152	469916	512	1.25109	77f0839f8ebea31040e462523e1c770e
.ndata	520192	2772992	0	0	d41d8cd98f00b204e9800998ecf8427e
.rsrc	3293184	3008	3072	3.01394	c5a749bab698d47d47acff6534f569b7
.reloc	3297280	4054	4096	3.78201	b56452d6d4550b55f6f232e5f2ca8121
.brdata	3301376	69632	69632	5.53972	f45f37eb7c27439ebb4e73e407ab8e07

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://e6321.g.akamaiedge.net/ps/conduitinstaller/statisticsstub.exe
hxxp://usage.integration.toolbar.va.conduit-services.com/usage.ashx
hxxp://storage.conduit.com/ps/conduitinstaller/statisticsstub.exe	23.9.99.136
hxxp://usage.integration.toolbar.conduit-services.com/usage.ashx	199.101.114.117

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET /ps/conduitinstaller/statisticsstub.exe HTTP/1.1

User-Agent: NSIS_Inetc (Mozilla)

Host: storage.conduit.com

Connection: Keep-Alive

Cache-Control: no-cache

HTTP/1.1 200 OK

Content-Type: application/octet-stream

Last-Modified: Mon, 17 Dec 2012 13:49:50 GMT

ETag: "9ff9b7625ddccd1:0"

Server: Microsoft-IIS/6.0

X-Powered-By: ASP.NET

Cache-Control: private, max-age=86400

Expires: Thu, 22 Jan 2015 10:43:26 GMT

Date: Wed, 21 Jan 2015 10:43:26 GMT

Transfer-Encoding: chunked

Connection: keep-alive

Connection: Transfer-Encoding

Access-Control-Max-Age: 604800

Access-Control-Allow-Credentials: true

Access-Control-Allow-Headers: origin, content-type

Access-Control-Allow-Methods: GET, OPTIONS

Access-Control-Allow-Origin: *

P3P: CP="NOI ADM DEV PSAi COM NAV OUR OTR STP IND DEM"

00006000..MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......A{.k...8...8...8.b<8...8.b,8...8...8...8...8...8..%8...8.."8...8Rich...8........PE..L.....GO.................t...z...B...8............@..........................`............@.................................@........@..............h........`.......................................................................................text....r.......t.................. ..`.rdata..n .......,...x..............@..@.data.... ..........................@....ndata...P...............................rsrc........@......................@..@.reloc.......P......................@..B........................................................................................................................................................................................................................................................................................................................................U....\.}..t .}.F.E.u..H......G..H.P.u..u..u.....@..K...SV.5..G.W.E.P.u.....@..e...E..E.P.u.....@..}..e....D.@........FR..VV..U... M..........M........E...FQ.....NU..M.......M...VT..U........FP..E...............E.P.M...H.@..E..P.E..E.P.u.....@..u....E..9}...n....~X.te.v4..L.@..E...tU.}.j.W.E......E.......P.@..vXW..T.@..u..5X.@.W..h ....E..E.Pj.h.jG.W....@..u.W...u....E.P.u.....@._^3.[.....L$....G...i. @...T.....tUVW.q.3.;5..G.sD..i. @...D..S.....t.G.....t...O..t .....u...3....3...F. @..;5..G.r.[

<<< skipped >>>

POST /usage.ashx HTTP/1.1

Content-Type: application/x-www-form-urlencoded

User-Agent: NSIS_Inetc (Mozilla)

Host: usage.integration.toolbar.conduit-services.com

Content-Length: 1101

Connection: Keep-Alive

Cache-Control: no-cache

{"installationType":"NSISBundle","installationVersion":"5.7.4.0","actionType":"postInstallReport","bundleGUID":"","parentProcess":"NULL","ctid":"","installtype":"","installid":"","cmdline":"","startpage":"","initStartpage":"","defaultsearch":"","initDefaultsearch":"","showwelcomepage":"","openwelcomedialog":"","fix404":"","searchfromaddress":"","openuninstallpage":"","defaultsearchdisplayname":"","defaultsearchurl":"","enablealerts":"","searchrevert":"","usermode":"","returnCode":"3","returnMessage":"Command Line Error: CTID Parameter Missing - Bad Usage","ieBrowserVersion":"","ieToolbarVersion":"","ieReturnCode":"","ieReturnMessage":"","ffBrowserVersion":"","ffToolbarVersion":"","ffReturnCode":"","ffReturnMessage":"","chBrowserVersion":"","chToolbarVersion":"","chReturnCode":"","chReturnMessage":"","singleInstall":"","iePreviouslyInstalled":"","ffPreviouslyInstalled":"","chPreviouslyInstalled":"","ieInstallVerified":"","ffInstallVerified":"","chInstallVerified":"","defaultBrowser":"","isUnicodeOSLanguage":"","installBlockerDetected":"","isFFActive":"","isCHActive":"","isIEActive":""}

HTTP/1.1 200 OK

Cache-Control: private

Content-Type: text/plain; charset=utf-8

Server: Microsoft-IIS/7.5

X-AspNet-Version: 4.0.30319

X-Powered-By: ASP.NET

Date: Wed, 21 Jan 2015 10:43:30 GMT

Content-Length: 9

ConduitOK..

Map

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

Strings from Dumps

%original file name%.exe_1572:

.text

.text

.rdata

.rdata

.data

.data

.ndata

.ndata

.rsrc

.rsrc

@.reloc

@.reloc

B.brdata

B.brdata

RegDeleteKeyExW

RegDeleteKeyExW

Kernel32.DLL

Kernel32.DLL

PSAPI.DLL

PSAPI.DLL

%s=%s

%s=%s

GetWindowsDirectoryW

GetWindowsDirectoryW

KERNEL32.dll

KERNEL32.dll

ExitWindowsEx

ExitWindowsEx

GetAsyncKeyState

GetAsyncKeyState

USER32.dll

USER32.dll

GDI32.dll

GDI32.dll

SHFileOperationW

SHFileOperationW

ShellExecuteW

ShellExecuteW

SHELL32.dll

SHELL32.dll

RegDeleteKeyW

RegDeleteKeyW

RegCloseKey

RegCloseKey

RegEnumKeyW

RegEnumKeyW

RegOpenKeyExW

RegOpenKeyExW

RegCreateKeyExW

RegCreateKeyExW

ADVAPI32.dll

ADVAPI32.dll

COMCTL32.dll

COMCTL32.dll

ole32.dll

ole32.dll

VERSION.dll

VERSION.dll

Vv.Vf

Vv.Vf

`.rdata

`.rdata

@.data

@.data

.reloc

.reloc

SSh4!

SSh4!

u.hl!

u.hl!

PeekNamedPipe

PeekNamedPipe

CreatePipe

CreatePipe

nsExec.dll

nsExec.dll

MSVCRT.dll

MSVCRT.dll

HttpSendRequestW

HttpSendRequestW

HttpSendRequestExW

HttpSendRequestExW

HttpQueryInfoW

HttpQueryInfoW

FtpCreateDirectoryW

FtpCreateDirectoryW

FtpOpenFileW

FtpOpenFileW

HttpAddRequestHeadersA

HttpAddRequestHeadersA

HttpOpenRequestW

HttpOpenRequestW

HttpAddRequestHeadersW

HttpAddRequestHeadersW

HttpEndRequestW

HttpEndRequestW

InternetCrackUrlW

InternetCrackUrlW

WININET.dll

WININET.dll

inetc.dll

inetc.dll

FtpCommandW

FtpCommandW

Filename: %s

Filename: %s

qb.aL,

qb.aL,

Nullsoft Install System v2.46.5-Unicode

Nullsoft Install System v2.46.5-Unicode

SHELL32.DLL

SHELL32.DLL

ShellExecuteA

ShellExecuteA

KERNEL32.DLL

KERNEL32.DLL

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\001DF1A6_Rar\%original file name%.exe

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\001DF1A6_Rar\%original file name%.exe

%original file name%.exe

%original file name%.exe

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsoB3.tmp\nsExec.dll

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsoB3.tmp\nsExec.dll

c:\%original file name%.exe

c:\%original file name%.exe

hXXp://89.119.67.154/testo5/

hXXp://89.119.67.154/testo5/

hXXp://kukutrustnet777.info/home.gif

hXXp://kukutrustnet777.info/home.gif

hXXp://kukutrustnet888.info/home.gif

hXXp://kukutrustnet888.info/home.gif

hXXp://kukutrustnet987.info/home.gif

hXXp://kukutrustnet987.info/home.gif

Q*G.Cwtt$

Q*G.Cwtt$

\.lhh

\.lhh

/34@.NSP

/34@.NSP

K.FX>Q

K.FX>Q

.LK'E

.LK'E

PhXXp://89.11;

PhXXp://89.11;

.info/home.gifv*y

.info/home.gifv*y

.text^

.text^

]6.dB

]6.dB

4.At%

4.At%

toskrnl.exe

toskrnl.exe

.klkjw:9fqwielu

.klkjw:9fqwielu

sc.pBT

sc.pBT

PAD.EXE

PAD.EXE

UrlA'G

UrlA'G

\'Web%f

\'Web%f

HTTP)e

HTTP)e

/KPCKwWEBWUP

/KPCKwWEBWUP

.SEdAUD

.SEdAUD

MM.PFW.

MM.PFW.

?.cmd

?.cmd

>>?456789:;

>>?456789:;

!"#$%&'()* ,-./012

!"#$%&'()* ,-./012

WS2_32.dll

WS2_32.dll

SHFileOperationA

SHFileOperationA

logging set to %d

logging set to %d

settings logging to %d

settings logging to %d

created uninstaller: %d, "%s"

created uninstaller: %d, "%s"

WriteReg: error creating key "%s\%s"

WriteReg: error creating key "%s\%s"

WriteReg: error writing into "%s\%s" "%s"

WriteReg: error writing into "%s\%s" "%s"

WriteRegBin: "%s\%s" "%s"="%s"

WriteRegBin: "%s\%s" "%s"="%s"

WriteRegDWORD: "%s\%s" "%s"="0xx"

WriteRegDWORD: "%s\%s" "%s"="0xx"

WriteRegExpandStr: "%s\%s" "%s"="%s"

WriteRegExpandStr: "%s\%s" "%s"="%s"

WriteRegStr: "%s\%s" "%s"="%s"

WriteRegStr: "%s\%s" "%s"="%s"

DeleteRegKey: "%s\%s"

DeleteRegKey: "%s\%s"

DeleteRegValue: "%s\%s" "%s"

DeleteRegValue: "%s\%s" "%s"

WriteINIStr: wrote [%s] %s=%s in %s

WriteINIStr: wrote [%s] %s=%s in %s

CopyFiles "%s"->"%s"

CopyFiles "%s"->"%s"

CreateShortCut: out: "%s", in: "%s %s", icon: %s,%d, sw=%d, hk=%d

CreateShortCut: out: "%s", in: "%s %s", icon: %s,%d, sw=%d, hk=%d

Error registering DLL: Could not load %s

Error registering DLL: Could not load %s

Error registering DLL: %s not found in %s

Error registering DLL: %s not found in %s

GetTTFFontName(%s) returned %s

GetTTFFontName(%s) returned %s

GetTTFVersionString(%s) returned %s

GetTTFVersionString(%s) returned %s

Exec: failed createprocess ("%s")

Exec: failed createprocess ("%s")

Exec: success ("%s")

Exec: success ("%s")

Exec: command="%s"

Exec: command="%s"

ExecShell: success ("%s": file:"%s" params:"%s")

ExecShell: success ("%s": file:"%s" params:"%s")

ExecShell: warning: error ("%s": file:"%s" params:"%s")=%d

ExecShell: warning: error ("%s": file:"%s" params:"%s")=%d

Exch: stack

Exch: stack

RMDir: "%s"

RMDir: "%s"

MessageBox: %d,"%s"

MessageBox: %d,"%s"

Delete: "%s"

Delete: "%s"

File: wrote %d to "%s"

File: wrote %d to "%s"

File: skipped: "%s" (overwriteflag=%d)

File: skipped: "%s" (overwriteflag=%d)

File: error creating "%s"

File: error creating "%s"

File: overwriteflag=%d, allowskipfilesflag=%d, name="%s"

File: overwriteflag=%d, allowskipfilesflag=%d, name="%s"

Rename failed: %s

Rename failed: %s

Rename on reboot: %s

Rename on reboot: %s

Rename: %s

Rename: %s

IfFileExists: file "%s" does not exist, jumping %d

IfFileExists: file "%s" does not exist, jumping %d

IfFileExists: file "%s" exists, jumping %d

IfFileExists: file "%s" exists, jumping %d

CreateDirectory: "%s" created

CreateDirectory: "%s" created

CreateDirectory: can't create "%s" - a file already exists

CreateDirectory: can't create "%s" - a file already exists

CreateDirectory: can't create "%s" (err=%d)

CreateDirectory: can't create "%s" (err=%d)

CreateDirectory: "%s" (%d)

CreateDirectory: "%s" (%d)

SetFileAttributes: "%s":X

SetFileAttributes: "%s":X

Sleep(%d)

Sleep(%d)

detailprint: %s

detailprint: %s

Call: %d

Call: %d

Aborting: "%s"

Aborting: "%s"

Jump: %d

Jump: %d

verifying installer: %d%%

verifying installer: %d%%

... %d%%

... %d%%

hXXp://nsis.sf.net/NSIS_Error

hXXp://nsis.sf.net/NSIS_Error

~nsu.tmp

~nsu.tmp

install.log

install.log

%u.%u%s%s

%u.%u%s%s

Skipping section: "%s"

Skipping section: "%s"

Section: "%s"

Section: "%s"

New install of "%s" to "%s"

New install of "%s" to "%s"

.DEFAULT\Control Panel\International

.DEFAULT\Control Panel\International

Software\Microsoft\Windows\CurrentVersion

Software\Microsoft\Windows\CurrentVersion

*?|/":

*?|/":

invalid registry key

invalid registry key

HKEY_DYN_DATA

HKEY_DYN_DATA

HKEY_CURRENT_CONFIG

HKEY_CURRENT_CONFIG

HKEY_PERFORMANCE_DATA

HKEY_PERFORMANCE_DATA

HKEY_USERS

HKEY_USERS

HKEY_LOCAL_MACHINE

HKEY_LOCAL_MACHINE

HKEY_CURRENT_USER

HKEY_CURRENT_USER

HKEY_CLASSES_ROOT

HKEY_CLASSES_ROOT