Trojan.Win32.FlyStudio_772c731757
HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Packer.KBySV0.28 (ep) (VIPRE), Virus.Win32.Delf!IK (Emsisoft), GenericEmailWorm.YR, GenericInjector.YR, GenericPhysicalDrive0.YR, TrojanFlyStudio.YR (Lavasoft MAS)
Behaviour: Trojan, Worm, EmailWorm, Virus
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
MD5: 772c7317572dcae2cc8d89bbb8e3944a
SHA1: 3711a518db4cfe8ebb95f199f69223c54784f12a
SHA256: 896bb2a65aa394c7ee3714495a6e4d0f75d1c28a09fc390d5dda68bc1573ce02
SSDeep: 49152:yXKCyhhYPAephepP8G/rTuQrVUhvtkCWK4S7qZ:4KC 6oYhsPFjXSW5l
Size: 1610240 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2011-12-31 15:37:21
Analyzed on: WindowsXP SP3 32-bit
Summary:
Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).
Payload
| Behaviour | Description |
|---|---|
| EmailWorm | Worm can send e-mails. |
Process activity
The Trojan creates the following process(es):
No processes have been created.
The Trojan injects its code into the following process(es):
%original file name%.exe:1820
File activity
The process %original file name%.exe:1820 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
C:\SkinH_EL.dll (88 bytes)
%System%\drivers\etc\hosts (368 bytes)
Registry activity
The process %original file name%.exe:1820 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AA D5 68 3C 2D 2A E4 D3 6E 17 B3 9A B9 BF 6A AC"
[HKCU\Software\Microsoft\Multimedia\DrawDib]
"vga.drv 1024x768x32(BGR 0)" = "31,31,31,31"
Network activity (URLs)
No activity has been detected.
HOSTS file anomalies
The Trojan modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses.
The modified file is 368 bytes in size. The following strings are added to the hosts file listed below:
| 127.0.0.1 | www.qqtz.com |
| 127.0.0.1 | www.tt336.com |
| 127.0.0.1 | www.dnfrufeng.com |
| 127.0.0.1 | www.xyhai.com |
| 127.0.0.1 | xyhai.com |
| 127.0.0.1 | WWW.DNFXM2012.COM |
| 127.0.0.1 | www.25zm.com |
| 127.0.0.1 | www.dnflangqun.com |
| 127.0.0.1 | a158421294.9000hk.info |
| 127.0.0.1 | nxyq.cccpan.com |
| 127.0.0.1 | wg68.cccpan.com |
Rootkit activity
No anomalies have been detected.
Propagation
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):No processes have been created.
- Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
C:\SkinH_EL.dll (88 bytes)
%System%\drivers\etc\hosts (368 bytes) - Restore the original content of the HOSTS file (%System%\drivers\etc\hosts):
127.0.0.1 localhost - Reboot the computer.
*Manual removal may cause unexpected system behaviour and should be performed at your own risk.
