Trojan.Win32.Generic!SB.0 (VIPRE), WormAutoItGen.YR (Lavasoft MAS)Behaviour: Trojan, Worm
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 6d7e11d0674934ad60805739c11a074c
SHA1: 2bcee7f42a716a9ccbab138084e457b0ea9ee145
SHA256: 3b5393a7598673fbd7f6c61e7a45f0f7edf8b37ea6900e87bc8dd3efec0ac95a
SSDeep: 24576:rRmJkcoQricOIQxiZY1iaXf/pV9u54LYcRFAoc8:oJZoQrbTFZY1iaXfRfLNR2oh
Size: 1115448 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2012-01-29 23:32:28
Analyzed on: WindowsXP SP3 32-bit
Summary: Worm. A program that is primarily replicating on networks or removable drives.
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Worm creates the following process(es):
svshost.exe:456
Reader_sl.exe:1064
wuauclt.exe:344
ipconfig.exe:240
ipconfig.exe:480
%original file name%.exe:1480
jusched.exe:1056
The Worm injects its code into the following process(es):
sqlwriter.exe:1164
File activity
The process svshost.exe:456 makes changes in the file system.
The Worm creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\sqlwriter.exe (10 bytes)
The process wuauclt.exe:344 makes changes in the file system.
The Worm creates and/or writes to the following file(s):
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.chk (100 bytes)
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.log (3576 bytes)
%WinDir%\SoftwareDistribution\DataStore\DataStore.edb (100 bytes)
The Worm deletes the following file(s):
%WinDir%\SoftwareDistribution\DataStore\Logs\tmp.edb (0 bytes)
The process %original file name%.exe:1480 makes changes in the file system.
The Worm creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\svshost.exe (22641 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\TMP654.dll (41 bytes)
C:\System.exe (7547 bytes)
%System%\drivers\etc\hosts (887 bytes)
%Documents and Settings%\%current user%\Application Data\check.txt (5 bytes)
The Worm deletes the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\svshost.exe (0 bytes)
The process jusched.exe:1056 makes changes in the file system.
The Worm creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\jusched.log (347 bytes)
Registry activity
The process svshost.exe:456 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "78 EE C3 86 76 8C 48 25 9E 60 CA 91 F1 A9 10 0A"
[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\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
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]
"MicroSoftUpdate" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\svshost.exe"
The process Reader_sl.exe:1064 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"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\{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 sqlwriter.exe:1164 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "DC C1 23 3D 73 9A BB 0F D4 E4 E0 A5 12 7D 01 EF"
The process ipconfig.exe:240 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "C4 A3 AF 95 D0 E1 A4 31 39 1B EB 17 35 6E 80 45"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy\traceIdentifier]
"Guid" = "5f31090b-d990-4e91-b16d-46121d0255aa"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil\traceIdentifier]
"Guid" = "8aefce96-4618-42ff-a057-3536aa78233e"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"Active" = "1"
[HKLM\System\CurrentControlSet\Services\Eventlog\Application\ESENT]
"CategoryMessageFile" = "%System%\ESENT.dll"
"EventMessageFile" = "%System%\ESENT.dll"
[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\QUtil]
"Active" = "1"
"ControlFlags" = "1"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"LogSessionName" = "stdout"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil]
"LogSessionName" = "stdout"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg\traceIdentifier]
"Guid" = "5f31090b-d990-4e91-b16d-46121d0255aa"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg]
"ControlFlags" = "1"
[HKLM\System\CurrentControlSet\Services\Eventlog\Application\ESENT]
"CategoryCount" = "16"
"TypesSupported" = "7"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg]
"LogSessionName" = "stdout"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"ControlFlags" = "1"
The process ipconfig.exe:480 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "FE 11 B3 EB C8 FD 6F D7 13 15 44 34 A4 24 48 C3"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy\traceIdentifier]
"Guid" = "5f31090b-d990-4e91-b16d-46121d0255aa"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil\traceIdentifier]
"Guid" = "8aefce96-4618-42ff-a057-3536aa78233e"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"Active" = "1"
[HKLM\System\CurrentControlSet\Services\Eventlog\Application\ESENT]
"CategoryMessageFile" = "%System%\ESENT.dll"
"EventMessageFile" = "%System%\ESENT.dll"
[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\QUtil]
"Active" = "1"
"ControlFlags" = "1"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy\traceIdentifier]
"BitNames" = " Error Unusual Info Debug"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"LogSessionName" = "stdout"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\QUtil]
"LogSessionName" = "stdout"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg\traceIdentifier]
"Guid" = "5f31090b-d990-4e91-b16d-46121d0255aa"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg]
"ControlFlags" = "1"
[HKLM\System\CurrentControlSet\Services\Eventlog\Application\ESENT]
"CategoryCount" = "16"
"TypesSupported" = "7"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappcfg]
"LogSessionName" = "stdout"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\eappprxy]
"ControlFlags" = "1"
The process %original file name%.exe:1480 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E1 42 C1 98 CF 5F 17 4C F4 92 BB FB 55 65 22 01"
[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\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
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]
"MicroSoftUpdate" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\svshost.exe"
Network activity (URLs)
No activity has been detected.
HOSTS file anomalies
The Worm modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses. The modified file is 1192 bytes in size. The following strings are added to the hosts file listed below:
127.0.0.1 | virustotal.com |
127.0.0.1 | metascan-online.com |
127.0.0.1 | novirusthanks.org |
127.0.0.1 | vscan.novirusthanks.org |
127.0.0.1 | virusscan.jotti.org |
127.0.0.1 | virscan.org |
127.0.0.1 | anubis.iseclab.org |
127.0.0.1 | threattrack.com |
127.0.0.1 | viruschief.com |
127.0.0.1 | threattrack.com |
127.0.0.1 | wepawet.iseclab.org |
127.0.0.1 | cloud.iobit.com |
127.0.0.1 | norman.com |
127.0.0.1 | virusade.com |
127.0.0.1 | virus.org |
127.0.0.1 | threatexpert.com |
Rootkit activity
No anomalies have been detected.
Propagation
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):
svshost.exe:456
wuauclt.exe:344
ipconfig.exe:240
ipconfig.exe:480
%original file name%.exe:1480 - Delete the original Worm file.
- Delete or disinfect the following files created/modified by the Worm:
%Documents and Settings%\%current user%\Local Settings\Temp\sqlwriter.exe (10 bytes)
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.chk (100 bytes)
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.log (3576 bytes)
%WinDir%\SoftwareDistribution\DataStore\DataStore.edb (100 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\svshost.exe (22641 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\TMP654.dll (41 bytes)
C:\System.exe (7547 bytes)
%System%\drivers\etc\hosts (887 bytes)
%Documents and Settings%\%current user%\Application Data\check.txt (5 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\jusched.log (347 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"MicroSoftUpdate" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\svshost.exe" - Restore the original content of the HOSTS file (%System%\drivers\etc\hosts): 127.0.0.1 localhost
- Reboot the computer.