HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Packed.24949 (DrWeb), Artemis!BDEC5A60DA04 (McAfee), Backdoor.Win32.Fynloski.FD, Trojan.Win32.Iconomon.FD, Trojan.Win32.Sasfis.FD, VirTool.Win32.DelfInject.FD, BackdoorFynloski.YR, GenericDownloader.YR, GenericInjector.YR, TrojanDownloaderAndromeda.YR (Lavasoft MAS)Behaviour: Trojan-Downloader, Trojan, Backdoor, Packed, VirTool
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: bdec5a60da040c7e86b4e35b64da2be0
SHA1: b7e383d48f869f5fbc7800cc6160c4a58a01e770
SHA256: ea992d0c2cbc221523d905063c928ed1d912e7a550277ca688873a5125e6f2fa
SSDeep: 12288:PpwEIFME8aD4OyQ8bRy7KXcnz9EipcpKFRrxhBF7eM/91wbRQ8k2BXgG4tliKvD3:PQ8acRbRWKXq5PFbBFJ11URQ8k2h gcu
Size: 761856 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: MicrosoftVisualC, NETexecutable, UPolyXv05_v6
Company: SummerSoft
Created at: 2013-11-11 08:33:35
Summary: Backdoor. Malware that enables a remote control of victim's machine.
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Backdoor creates the following process(es):The Backdoor injects its code into the following process(es):
keygen.exe:820
WinUpdate.exe:1548
%original file name%.exe:1120
File activity
The process %original file name%.exe:1120 makes changes in the file system.
The Backdoor creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\Win Update\Win Update.exe (5441 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\keygen.exe (16 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\AppLunch\Cho.ine (7547 bytes)
Registry activity
The process keygen.exe:820 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "8A F4 DE 2B 9B CB 97 9E CF EF 99 C6 FB C9 08 B3"
The process WinUpdate.exe:1548 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "C7 28 15 2D 98 80 29 C8 AE 95 57 6A F7 BB 67 66"
[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"
The process %original file name%.exe:1120 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "86 7A C0 85 17 AD 25 29 D7 56 BB 5F BB 21 71 57"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%\Local Settings\Temp]
"keygen.exe" = "keygen"
[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"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
The Backdoor modifies IE settings for security zones to map all web-nodes that bypassing proxy to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"
The Backdoor modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:
"UNCAsIntranet" = "1"
The Backdoor modifies IE settings for security zones to map all urls to the Intranet Zone:
"IntranetName" = "1"
To automatically run itself each time Windows is booted, the Backdoor adds the following link to its file to the system registry autorun key:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Win Update" = "%Documents and Settings%\%current user%\Local Settings\Temp\Win Update\Win Update.exe"
Network activity (URLs)
URL | IP |
---|---|
plurnt.bounceme.net | 193.0.200.185 |
HOSTS file anomalies
No changes have been detected.
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 the original Backdoor's process (How to End a Process With the Task Manager).
- Delete the original Backdoor file.
- Delete or disinfect the following files created/modified by the Backdoor:
%Documents and Settings%\%current user%\Local Settings\Temp\Win Update\Win Update.exe (5441 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\keygen.exe (16 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\AppLunch\Cho.ine (7547 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Win Update" = "%Documents and Settings%\%current user%\Local Settings\Temp\Win Update\Win Update.exe" - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Reboot the computer.