Gen:Variant.Kazy.7226 (BitDefender), Backdoor:Win32/Cycbot.G (Microsoft), Trojan.Win32.Pakes.qvc (Kaspersky), Trojan.Win32.FakeAV.IS (v) (VIPRE), BackDoor.Gbot.1591 (DrWeb), Gen:Variant.Kazy.7226 (B) (Emsisoft), BackDoor-EXI.gen.ab (McAfee), Backdoor.Cycbot!gen9 (Symantec), Backdoor.Win32.Agent (Ikarus), Win32/Cryptor (AVG), Win32:Cybota [Trj] (Avast), BKDR_CYCBOT.SME3 (TrendMicro), Trojan.Win32.Swrort.3.FD, BackdoorCycbot.YR (Lavasoft MAS)Behaviour: Trojan, Backdoor, Fake-AV
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 1c848dcaf45329c5545bd1e74fe1349c
SHA1: c20e9be118d70af6950859b78e8fa42a5cfd752b
SHA256: 5f0b33132b97e1bd2fe8b9d60ed724868c04bdb600e4f65fd329fd2a4eb1c326
SSDeep: 3072:6X07TD3LaVFhiUyb RGsEQobBnP6F39C/rtLi8Y4goQipNXQnkiNgHo7:6XgTvaPhryKOQew49QAXNG
Size: 174080 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2005-09-01 20:31:30
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).
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Trojan creates the following process(es):
%original file name%.exe:1600
%original file name%.exe:856
The Trojan injects its code into the following process(es):
%original file name%.exe:984
File activity
The process %original file name%.exe:984 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Application Data\507CF\3708F.exe (84697 bytes)
%Documents and Settings%\%current user%\Application Data\507CF\F2C6.07C (2668 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT.LOG (2808 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (1332 bytes)
Registry activity
The process %original file name%.exe:1600 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "79 6E 17 9C CE 5F 17 31 2C 85 BA 79 BA BA E4 C4"
The process %original file name%.exe:856 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "75 DD E2 3D F9 22 82 93 76 80 E0 B8 1E F2 E8 40"
The process %original file name%.exe:984 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 12 00 00 00 03 00 00 00 14 00 00 00"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "1"
[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "1"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyServer" = "http=127.0.0.1:56545"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "17 75 53 D8 E9 74 E5 C2 80 B3 26 B4 73 3F 1A 29"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"DefaultConnectionSettings" = "3C 00 00 00 03 00 00 00 03 00 00 00 14 00 00 00"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"
The Trojan adds the reference to itself to be executed when a user logs on:
[HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
"Shell" = "explorer.exe,%Documents and Settings%\%current user%\Application Data\507CF\3708F.exe"
The Trojan deletes the following value(s) in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyOverride"
Network activity (URLs)
| URL | IP |
|---|---|
| hxxp://rumperstumprs.com/logo.png?tq=gKZEtzoYwLzEvUb5dQzRsrCqD/cvTca3l74EgC9OjrPGpgfib1XFp5zpRPksUt+A/gSoSEU=&pr=467 | 69.43.161.170 |
| hxxp://www.google.com/ | 173.194.43.80 |
| hxxp://www.google.ca/?gfe_rd=cr&ei=61DbUvSEI6qC8QeUqoGQCw | 173.194.43.88 |
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 malicious process(es) (How to End a Process With the Task Manager):
%original file name%.exe:1600
%original file name%.exe:856 - Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Application Data\507CF\3708F.exe (84697 bytes)
%Documents and Settings%\%current user%\Application Data\507CF\F2C6.07C (2668 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT.LOG (2808 bytes) - Remove the references to the Trojan by modifying the following registry value(s) (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
"Shell" = "explorer.exe,%Documents and Settings%\%current user%\Application Data\507CF\3708F.exe" - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Reboot the computer.