HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Generic.pak!cobra (VIPRE), Worm.Win32.Ainslot.VB.FD, GenericAutorunWorm.YR, WormAinslot_VariantOfZeus.YR (Lavasoft MAS)Behaviour: Trojan, Worm, WormAutorun
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: d74beea5ac661a4782988fccc1e17906
SHA1: 06af82f9a779fc99bbc462d6b86367bdd6d3266e
SHA256: dadebfad413df043420951b759449b0245e187a5ca0f9bbc7df0f3a8de612b8a
SSDeep: 6144:AW Oe33qjdsATCP8oQYhmBctiaO9RFuBLG:V OqqRsATxYIWoaiPK
Size: 307200 bytes
File type: EXE
Platform: WIN32
Entropy: Probably Packed
PEID: MicrosoftVisualC, NETexecutable, UPolyXv05_v6
Company: no certificate found
Created at: 2011-10-16 14:26:00
Summary: Worm. A program that is primarily replicating on networks or removable drives.
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):
reg.exe:1600
reg.exe:1784
reg.exe:1728
reg.exe:1624
d74beea5ac661a4782988fccc1e17906.exe:1644
The Worm injects its code into the following process(es):
vbc.exe:2004
File activity
The process vbc.exe:2004 makes changes in a file system.
The Worm creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Application Data\loot (33 bytes)
The process d74beea5ac661a4782988fccc1e17906.exe:1644 makes changes in a file system.
The Worm creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Application Data\1pix4yja\lakwvm3x.exe (307 bytes)
Registry activity
The process vbc.exe:2004 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "54 0A F3 74 A4 AA E4 63 0A 0A EB F3 06 47 95 D2"
[HKCU\Software\VB and VBA Program Settings\INSTALL\DATE]
"NFZPJDI5GD" = "September 12, 2013"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\VB and VBA Program Settings\SrvID\ID]
"NFZPJDI5GD" = "Protection"
The process reg.exe:1600 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1B B0 5F 00 84 B9 95 8A 99 02 E2 78 B1 60 A9 8C"
[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DoNotAllowExceptions" = "0"
The process reg.exe:1784 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "B5 F0 21 B2 67 0A B1 D8 77 D4 8B A5 A3 9C 35 92"
Adds a rule to the firewall Windows which allows any network activity:
[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\Microsoft.NET\Framework\v2.0.50727]
"vbc.exe" = "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe:*:Enabled:Windows Messanger"
The process reg.exe:1728 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "CD 75 89 DA 02 52 FB B4 7C A2 85 45 60 76 E7 5D"
[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DoNotAllowExceptions" = "0"
The process reg.exe:1624 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "FF C3 95 C6 34 EA 95 2C 04 FD 03 DF 61 5B 7E 3C"
Adds a rule to the firewall Windows which allows any network activity:
[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\%Documents and Settings%\%current user%\Application Data]
"Protection.exe" = "%Documents and Settings%\%current user%\Application Data\Protection.exe:*:Enabled:Windows Messanger"
The process d74beea5ac661a4782988fccc1e17906.exe:1644 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "6F F1 E9 8C ED 0B 73 CC 9C 6E 85 0E 81 EE 1C 69"
[HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\{09414684-ea65-44b7-856a3c780f8}]
"StubPath" = "%Documents and Settings%\%current user%\Application Data\\lakwvm3x.exe"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
To automatically run itself each time Windows is booted, the Worm adds the following link to its file to the system registry autorun key:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"hls0wexjhw03xjqzhwtnpu2l" = "%Documents and Settings%\%current user%\Application Data\\lakwvm3x.exe"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"h2d3pfep3zrx25s5rlosya4o" = "%Documents and Settings%\%current user%\Application Data\\lakwvm3x.exe"
Network activity (URLs)
No activity has 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
- 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):
reg.exe:1600
reg.exe:1784
reg.exe:1728
reg.exe:1624
d74beea5ac661a4782988fccc1e17906.exe:1644 - Delete the original Worm file.
- Delete or disinfect the following files created/modified by the Worm:
%Documents and Settings%\%current user%\Application Data\loot (33 bytes)
%Documents and Settings%\%current user%\Application Data\1pix4yja\lakwvm3x.exe (307 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"hls0wexjhw03xjqzhwtnpu2l" = "%Documents and Settings%\%current user%\Application Data\\lakwvm3x.exe"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"h2d3pfep3zrx25s5rlosya4o" = "%Documents and Settings%\%current user%\Application Data\\lakwvm3x.exe" - Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
- Reboot the computer.