Trojan.Fakealert.27035 (BitDefender), Rogue:Win32/FakePAV (Microsoft), Trojan.Win32.FakeAv.dprv (Kaspersky), FraudTool.Win32.PrivacyCenter.ek!a (v) (VIPRE), Trojan.Fakealert.22276 (DrWeb), Trojan.Fakealert.27035 (B) (Emsisoft), FakeAlert-MSEScan (McAfee), SecEssentialFraud!gen3 (Symantec), Trojan.Win32.FakeAV (Ikarus), FakeAlert.AEE (AVG), Win32:Dropper-HAF [Drp] (Avast), TROJ_GEN.RFFFC0EHR13 (TrendMicro), Trojan.Win32.Bumat.FD (Lavasoft MAS)Behaviour: Trojan, Fake-AV
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 5c1ab7a5b9fd6356e008dfa7689d2f6b
SHA1: a6ae501a03c0c81d2abdef9adf54ef062ac2b65f
SHA256: 3a11027f7d9358897c8794ba68143fb912020100a5502170711f927a96be072c
SSDeep: 24576:HGspk3/bggDh1VySGYDrSqqwTgxrFHZs9OIHFJsWBPHCd8Oq3RZMv5pzvXDblX:HrpY0aESGYDrUwkxrdyHFJvsChuBpV
Size: 1762816 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: ASProtectv123RC1, ASProtect13321Registered, UPolyXv05_v6, ASProtectv12xNewStrain
Company: RightClick
Created at: 2011-06-18 18:08:24
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):
sc.exe:1700
sc.exe:1052
sc.exe:952
sc.exe:940
sc.exe:444
sc.exe:828
net1.exe:1868
net1.exe:1072
net.exe:1784
net.exe:816
%original file name%.exe:512
mshta.exe:1292
The Trojan injects its code into the following process(es):
gohrbg.exe:1160
File activity
The process %original file name%.exe:512 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Application Data\Microsoft\gohrbg.exe (1762816 bytes)
%Documents and Settings%\%current user%\Application Data\Microsoft (4096 bytes)
The process mshta.exe:1292 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
Registry activity
The process sc.exe:1700 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "C3 BD DB C7 A4 56 70 A7 0D FE 8C 3B 27 3D 5B 67"
The process sc.exe:1052 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "BB 33 0F 17 F1 D6 14 63 86 54 15 E5 18 32 A6 DC"
The process sc.exe:952 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "D7 CB 63 FD F1 80 85 4D 19 37 94 67 C6 DA 97 36"
The process sc.exe:940 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "04 86 62 B4 08 6A CE 0F 47 5F E1 87 5A C8 9C 3D"
The process sc.exe:444 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "0E 71 08 7D F1 38 87 0B D8 CE 92 AE 37 36 E7 47"
The process sc.exe:828 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E3 D8 5E 29 52 85 BC 9B 79 1A A9 CA 48 4E E0 33"
The process net1.exe:1868 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "0D 42 7E 99 9E 06 0E DF 92 D7 B2 D3 68 5E B7 5A"
The process net1.exe:1072 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AD F0 70 17 18 53 00 7A CE D6 E1 B1 2C C6 85 67"
The process net.exe:1784 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "DA CB F8 2D 07 BF 4B 3B B1 9D 8F BA DA 9B A6 FF"
The process net.exe:816 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "41 F7 27 27 58 91 6B 35 8E B2 2D 67 4F FC E9 85"
The process gohrbg.exe:1160 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "0F 74 46 7E 1F D9 8A 1C 8B C1 6A 6B 82 74 49 BD"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MSASCui.exe]
"debugger" = "svchost.exe"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe]
"debugger" = "svchost.exe"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe]
"debugger" = "svchost.exe"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings]
"WarnOnHTTPSToHTTPRedirect" = "0"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avastSvc.exe]
"debugger" = "svchost.exe"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe]
"debugger" = "svchost.exe"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msmpeng.exe]
"debugger" = "svchost.exe"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\afwserv.exe]
"debugger" = "svchost.exe"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer]
"SysCert" = "DD 07 09 00 01 00 1E 00 0F 00 1B 00 03 00 D9 00"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avastUI.exe]
"debugger" = "svchost.exe"
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore]
"DisableSR " = "1"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"WarnOnHTTPSToHTTPRedirect" = "0"
The Trojan adds the reference to itself to be executed when a user logs on:
[HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
"Shell" = "%Documents and Settings%\%current user%\Application Data\Microsoft\gohrbg.exe"
The process %original file name%.exe:512 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "5F 63 AD D5 9D 85 ED E2 C6 E1 6F 1F CC 44 F8 A5"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Ãâ€Ã¾ÃºÑƒÃ¼ÃµÃ½Ñ‚Ñ‹"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\àðñþчøù ÑÂтþû"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{ebcf8d94-66db-11de-b228-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{d8c0d8da-77bd-11e0-bb02-000c293bc0fd}]
"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\{91167d42-103d-11db-8c91-806d6172696f}]
"BaseClass" = "Drive"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\àðñþчøù ÑÂтþû"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\Üþø ôþúуüõýты"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{91167d45-103d-11db-8c91-806d6172696f}]
"BaseClass" = "Drive"
The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"
The Trojan 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 Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:
"ProxyBypass" = "1"
The process mshta.exe:1292 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" = "65324"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65324"
[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"
[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65324"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 0C 00 00 00 01 00 00 00 00 00 00 00"
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "0E E8 FA 6B 54 AD 5A BE B2 91 19 D7 84 08 3E 58"
[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" = "65324"
[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"
[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 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:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"
The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:
"ProxyBypass" = "1"
Proxy settings are disabled:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"
The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"
The Trojan deletes the following value(s) in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"
Network activity (URLs)
URL | IP |
---|---|
pcguard-online.com | Unresolvable |
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):
sc.exe:1700
sc.exe:1052
sc.exe:952
sc.exe:940
sc.exe:444
sc.exe:828
net1.exe:1868
net1.exe:1072
net.exe:1784
net.exe:816
%original file name%.exe:512
mshta.exe:1292 - Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Application Data\Microsoft\gohrbg.exe (1762816 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 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" = "%Documents and Settings%\%current user%\Application Data\Microsoft\gohrbg.exe" - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Reboot the computer.