HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Generic.pak!cobra (VIPRE), Win32.SuspectCrc!IK (Emsisoft), 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: 776638ac17d103657896973e5880d800
SHA1: 42f10c871fce2d92546da98700241dcd89e63d81
SHA256: 146683a794c422444a7fad192dd296ddc726e3e5076ca87c3c0cb2e7cbed074e
SSDeep: 6144:pRHI8f/sxHHm7tiT7DGhEQuNtFEqh1gKk:XLfkFqsfy9uznf
Size: 233472 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: MicrosoftVisualC, NETexecutable, UPolyXv05_v6
Company: no certificate found
Created at: 2013-09-10 02:11:30
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):
776638ac17d103657896973e5880d800.exe:1588
reg.exe:540
reg.exe:340
reg.exe:1760
reg.exe:896
The Worm injects its code into the following process(es):
776638ac17d103657896973e5880d800.exe:592
File activity
The process 776638ac17d103657896973e5880d800.exe:592 makes changes in a file system.
The Worm creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Application Data\logs (34 bytes)
%Documents and Settings%\%current user%\Application Data\L5EDMC4O56.exe (305 bytes)
Registry activity
The process 776638ac17d103657896973e5880d800.exe:1588 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "0D 3E 56 E6 44 9D A3 4B D6 61 47 C3 8B E1 D8 20"
[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"
The process 776638ac17d103657896973e5880d800.exe:592 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "2D 5B DD 67 64 78 F6 4F 1F E0 C6 8D 94 24 C0 05"
[HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\{CFBD7D75-AEAB-F53E-4DF6-C7A728DDEB0F}]
"StubPath" = "%Documents and Settings%\%current user%\Application Data\L5EDMC4O56.exe"
[HKCU\Software\Microsoft\Active Setup\Installed Components\{CFBD7D75-AEAB-F53E-4DF6-C7A728DDEB0F}]
"StubPath" = "%Documents and Settings%\%current user%\Application Data\L5EDMC4O56.exe"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run]
"Windows Defender" = "%Documents and Settings%\%current user%\Application Data\L5EDMC4O56.exe"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\VB and VBA Program Settings\INSTALL\DATE]
"RK37QA92BA" = "September 16, 2013"
[HKCU\Software\VB and VBA Program Settings\SrvID\ID]
"RK37QA92BA" = "fulnp's Bot"
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]
"Windows Defender" = "%Documents and Settings%\%current user%\Application Data\L5EDMC4O56.exe"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"Windows Defender" = "%Documents and Settings%\%current user%\Application Data\L5EDMC4O56.exe"
The process reg.exe:540 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "64 6A BC 5A 41 20 62 8E 5D 13 5C 71 01 79 F3 41"
[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DoNotAllowExceptions" = "0"
The process reg.exe:340 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "BD 6C 26 FC 74 C8 08 0C 8E DC 73 55 8F 88 6A DD"
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]
"L5EDMC4O56.exe" = "%Documents and Settings%\%current user%\Application Data\L5EDMC4O56.exe:*:Enabled:Windows Messanger"
The process reg.exe:1760 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1A BC 8F 06 B1 5F 80 CE 6B 09 80 A0 AB FF 34 FC"
Adds a rule to the firewall Windows which allows any network activity:
[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\c:\]
"776638ac17d103657896973e5880d800.exe" = "c:\\776638ac17d103657896973e5880d800.exe:*:Enabled:Windows Messanger"
The process reg.exe:896 makes changes in a system registry.
The Worm creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "68 79 0C 0F A8 24 EE 6E 1A 5F 31 00 6D 29 1E B4"
[HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
"DoNotAllowExceptions" = "0"
Network activity (URLs)
URL | IP |
---|---|
hxxp://api.ipinfodb.com/v2/ip_query_country.php?key=33134207068e7a95c2b45275a388806be6b9ca837fe782832723b99fb21a7a8c&timezone=off | 67.212.77.12 |
dbag40.no-ip.biz | 72.199.120.150 |
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):
776638ac17d103657896973e5880d800.exe:1588
reg.exe:540
reg.exe:340
reg.exe:1760
reg.exe:896 - Delete the original Worm file.
- Delete or disinfect the following files created/modified by the Worm:
%Documents and Settings%\%current user%\Application Data\logs (34 bytes)
%Documents and Settings%\%current user%\Application Data\L5EDMC4O56.exe (305 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Windows Defender" = "%Documents and Settings%\%current user%\Application Data\L5EDMC4O56.exe"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"Windows Defender" = "%Documents and Settings%\%current user%\Application Data\L5EDMC4O56.exe" - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
- Reboot the computer.