HEUR:Trojan.Win32.Generic (Kaspersky), 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: 55cf368fc2cce21fb94637eb8ecbfd8e
SHA1: 19ffa600f13d11f6d45dff3746187d43ab78465c
SHA256: 6aaf68afc13f30ebc678fea754b7b37e5d7722e92f38f565d0bf4d5f6f861d8c
SSDeep: 12288:sieVQkTrvj4p3lLILblLctkBDR3Bbg5eGtwS9ZeC2QaZspl:sPQkTf41wblIuDZBbctl90sr
Size: 813568 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company: Firseria
Created at: 2012-10-30 10:00:38
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:1788
reg.exe:1732
reg.exe:1084
reg.exe:1584
%original file name%.exe:1668
The Worm injects its code into the following process(es):
%original file name%.exe:2004
File activity
The process %original file name%.exe:2004 makes changes in the file system.
The Worm creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Application Data\key (34 bytes)
%Documents and Settings%\%current user%\Application Data\V0YQN9N9LB.exe (2201 bytes)
Registry activity
The process reg.exe:1788 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "56 1A E6 0B 44 E6 38 43 96 0A 14 C7 AF B0 79 3A"
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:Windows Messanger"
The process reg.exe:1732 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "D7 F9 20 61 FC F2 A4 5B 61 2A 99 DE 24 69 F5 A1"
[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DoNotAllowExceptions" = "0"
The process reg.exe:1084 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "27 9F 83 F8 63 84 B1 1B E2 7C 87 34 2F 20 52 43"
[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DoNotAllowExceptions" = "0"
The process reg.exe:1584 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "43 CF F7 D8 DD F0 D9 58 16 75 91 EE 20 1F EA 6F"
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]
"V0YQN9N9LB.exe" = "%Documents and Settings%\%current user%\Application Data\V0YQN9N9LB.exe:*:Enabled:Windows Messanger"
The process %original file name%.exe:2004 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "8B 6A 5B DB 7B 60 98 FF 8F B9 38 57 90 A9 60 EA"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run]
"kJgY89Y96e" = "%Documents and Settings%\%current user%\Application Data\V0YQN9N9LB.exe"
[HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\{5EEF8CE9-F6F2-AEFB-7AB8-1FCA2CC397F7}]
"StubPath" = "%Documents and Settings%\%current user%\Application Data\V0YQN9N9LB.exe"
[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]
"VJ0S99SHNP" = "abuzai's Bot"
[HKCU\Software\Microsoft\Active Setup\Installed Components\{5EEF8CE9-F6F2-AEFB-7AB8-1FCA2CC397F7}]
"StubPath" = "%Documents and Settings%\%current user%\Application Data\V0YQN9N9LB.exe"
[HKCU\Software\VB and VBA Program Settings\INSTALL\DATE]
"VJ0S99SHNP" = "November 30, 2013"
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]
"kJgY89Y96e" = "%Documents and Settings%\%current user%\Application Data\V0YQN9N9LB.exe"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"kJgY89Y96e" = "%Documents and Settings%\%current user%\Application Data\V0YQN9N9LB.exe"
The process %original file name%.exe:1668 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "32 AE CB 87 54 C7 D0 8E 70 54 A0 2F 80 9A 34 A9"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
Network activity (URLs)
No activity has been detected.
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
- 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:1788
reg.exe:1732
reg.exe:1084
reg.exe:1584
%original file name%.exe:1668 - Delete the original Worm file.
- Delete or disinfect the following files created/modified by the Worm:
%Documents and Settings%\%current user%\Application Data\key (34 bytes)
%Documents and Settings%\%current user%\Application Data\V0YQN9N9LB.exe (2201 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"kJgY89Y96e" = "%Documents and Settings%\%current user%\Application Data\V0YQN9N9LB.exe"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"kJgY89Y96e" = "%Documents and Settings%\%current user%\Application Data\V0YQN9N9LB.exe" - Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
- Reboot the computer.