TROJ_PERFECT.A
Trojan-Spy.Win32.Perfloger.W (Ikarus), Win32/PerfectKeylogger application (Nod32)
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
Arrival Details
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Trojan drops the following files:
- %User Temp%\RarSFX0\void
- %User Temp%\RarSFX0\bpk.bin
- %User Temp%\RarSFX0\apps.dat
- %User Temp%\RarSFX0\rinst.dat
- %User Temp%\RarSFX0\titles.dat
- %User Temp%\RarSFX0\bsdhooks.dll - Detected as TROJ_PERFECT.A
- %User Temp%\RarSFX0\web.dll - Detected as SPYWARE_KEYL_PERFECTKEYLOGGER
- %User Temp%\RarSFX0\__original.exe
- %User Temp%\RarSFX0\bpk.exe - Detected as TSPY_KEYLOG
- %User Temp%\RarSFX0\rinst.exe - Detected as TROJ_PERFECT.A
- %User Temp%\INS86D5.tmp
- %User Temp%\is-E2OLA.tmp\_shfoldr.dll
- %System%\bpk.exe - Detected as TSPY_KEYLOG
- %System%\rinst.exe - Detected as TROJ_PERFECT.A
- %System%\bsdhooks.dll - Detected as TROJ_PERFECT.A
- %System%\web.dll - Detected as SPYWARE_KEYL_PERFECTKEYLOGGER
- %System%\bpk.bin
- %System%\apps.dat
- %System%\titles.dat
- %System%\rinst.dat
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
It adds the following processes:
- %User Temp%\RarSFX0\rinst.exe
- %User Temp%\RarSFX0\__original.exe
- %System%\bpk.exe
- %User Temp%\INS86D5.tmp /SL3 $F0240 %User Temp%\RarSFX0\__original.exe 731394 734796 61440
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
Other System Modifications
This Trojan adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
BPK = %System%\bpk.exe
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
BPK.IESpy.1
(default) = IESpy Class
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
BPK.IESpy.1\CLSID
(default) = {1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
BPK.IESpy
(default) = IESpy Class
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
BPK.IESpy\CLSID
(default) = {1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
BPK.IESpy\CurVer
(default) = BPK.IESpy.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
(default) = IESpy Class
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\ProgID
(default) = BPK.IESpy.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\VersionIndependentProgID
(default) = BPK.IESpy
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\InprocServer32
(default) = %System%\web.dll
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\InprocServer32
ThreadingModel = Apartment
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\TypeLib
(default) = {1E1B286C-88FF-11D3-8D96-D7ACAC95951F}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
(default) = BPK IE Plugin
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0
(default) = BPK IE Plugin Type Library
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\
FLAGS
(default) = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\
0\win32
(default) = %System%\web.dll
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\
HELPDIR
(default) = %System%\
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}
(default) = IViewSource
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\ProxyStubClsid
(default) = {00020424-0000-0000-C000-000000000046}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\ProxyStubClsid32
(default) = {00020424-0000-0000-C000-000000000046}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\TypeLib
(default) = {1E1B286C-88FF-11D3-8D96-D7ACAC95951F}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\TypeLib
Version = 1.0
Other Details
This Trojan adds the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
BPK.IESpy
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
BPK.IESpy.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
BPK.IESpy.1\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
BPK.IESpy\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
BPK.IESpy\CurVer
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\VersionIndependentProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\Programmable
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\
FLAGS
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\
0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\
0\win32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\
HELPDIR
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\ProxyStubClsid
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\ProxyStubClsid32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\TypeLib
SOLUTION
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Identify and terminate files detected as TROJ_PERFECT.A
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 4
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
- BPK = %System%\bpk.exe
- BPK = %System%\bpk.exe
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\BPK.IESpy.1
- (default) = IESpy Class
- (default) = IESpy Class
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\BPK.IESpy.1\CLSID
- (default) = {1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
- (default) = {1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\BPK.IESpy
- (default) = IESpy Class
- (default) = IESpy Class
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\BPK.IESpy\CLSID
- (default) = {1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
- (default) = {1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\BPK.IESpy\CurVer
- (default) = BPK.IESpy.1
- (default) = BPK.IESpy.1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
- (default) = IESpy Class
- (default) = IESpy Class
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\ProgID
- (default) = BPK.IESpy.1
- (default) = BPK.IESpy.1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\VersionIndependentProgID
- (default) = BPK.IESpy
- (default) = BPK.IESpy
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\InprocServer32
- (default) = %System%\web.dll
- (default) = %System%\web.dll
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\InprocServer32
- ThreadingModel = Apartment
- ThreadingModel = Apartment
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\TypeLib
- (default) = {1E1B286C-88FF-11D3-8D96-D7ACAC95951F}
- (default) = {1E1B286C-88FF-11D3-8D96-D7ACAC95951F}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
- (default) = BPK IE Plugin
- (default) = BPK IE Plugin
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0
- (default) = BPK IE Plugin Type Library
- (default) = BPK IE Plugin Type Library
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\FLAGS
- (default) = 0
- (default) = 0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\0\win32
- (default) = %System%\web.dll
- (default) = %System%\web.dll
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\HELPDIR
- (default) = %System%\
- (default) = %System%\
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}
- (default) = IViewSource
- (default) = IViewSource
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\ProxyStubClsid
- (default) = {00020424-0000-0000-C000-000000000046}
- (default) = {00020424-0000-0000-C000-000000000046}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\ProxyStubClsid32
- (default) = {00020424-0000-0000-C000-000000000046}
- (default) = {00020424-0000-0000-C000-000000000046}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\TypeLib
- (default) = {1E1B286C-88FF-11D3-8D96-D7ACAC95951F}
- (default) = {1E1B286C-88FF-11D3-8D96-D7ACAC95951F}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\TypeLib
- Version = 1.0
- Version = 1.0
Step 5
Delete this registry key
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\BPK.IESpy
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\BPK.IESpy.1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\BPK.IESpy.1\CLSID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\BPK.IESpy\CLSID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\BPK.IESpy\CurVer
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\ProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\VersionIndependentProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\Programmable
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\InprocServer32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}\TypeLib
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1E1B2879-88FF-11D3-8D96-D7ACAC95951F}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\FLAGS
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\0\win32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951F}\1.0\HELPDIR
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\ProxyStubClsid
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\ProxyStubClsid32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951F}\TypeLib
Step 6
Search and delete this file
- %User Temp%\RarSFX0\void
- %User Temp%\RarSFX0\bpk.bin
- %User Temp%\RarSFX0\apps.dat
- %User Temp%\RarSFX0\rinst.dat
- %User Temp%\RarSFX0\titles.dat
- %User Temp%\RarSFX0\bsdhooks.dll
- %User Temp%\RarSFX0\web.dll
- %User Temp%\RarSFX0\__original.exe
- %User Temp%\RarSFX0\bpk.exe
- %User Temp%\RarSFX0\rinst.exe
- %User Temp%\INS86D5.tmp
- %User Temp%\is-E2OLA.tmp\_shfoldr.dll
- %System%\bpk.exe
- %System%\rinst.exe
- %System%\bsdhooks.dll
- %System%\web.dll
- %System%\bpk.bin
- %System%\apps.dat
- %System%\titles.dat
- %System%\rinst.dat
Step 7
Scan your computer with your Trend Micro product to delete files detected as TROJ_PERFECT.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:
Did this description help? Tell us how we did.