TROJ_BICOLOLO.AT
Trojan:BAT/Qhost.AF (Microsoft); Trojan.ADH (Symantec); Trojan.Win32.Generic!BT (Sunbelt); VBS/Agent (AVG)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
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 creates the following folders:
- %User Temp%\$inst
- %Program Files%\idol ya poka_
- %Program Files%\idol ya poka_\no_lover_simp
(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, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)
Other System Modifications
This Trojan deletes the following files:
- %User Temp%\$inst\0.tmp
- %User Temp%\$inst\1.tmp
- %User Temp%\$inst\2.tmp
- %User Temp%\$inst\3.tmp
- %User Temp%\$inst\4.tmp
- %User Temp%\$inst\5.tmp
- %User Temp%\$inst\6.tmp
- %User Temp%\$inst\7.tmp
- %User Temp%\$inst\8.tmp
- %User Temp%\$inst\9.tmp
- %User Temp%\$inst\10.tmp
- %User Temp%\$inst\11.tmp
- %User Temp%\$inst\12.tmp
- %User Temp%\$inst\13.tmp
- %User Temp%\$inst\14.tmp
- %User Temp%\$inst\15.tmp
- %User Temp%\$inst\16.tmp
- %User Temp%\$inst\17.tmp
- %User Temp%\$inst\20.tmp
- %User Temp%\$inst\50.tmp
- %User Temp%\$inst\21.tmp
- %User Temp%\$inst\51.tmp
(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, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
It adds the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
no_lover_simp happines loloness_
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
no_lover_simp happines loloness_
DisplayName = "no_lover_simp happines loloness_"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
no_lover_simp happines loloness_
DisplayIcon = "%Program Files%\idol ya poka_\no_lover_simp\Uninstall.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
no_lover_simp happines loloness_
UninstallString = "%Program Files%\idol ya poka_\no_lover_simp\Uninstall.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
no_lover_simp happines loloness_
NoModify = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
no_lover_simp happines loloness_
NoRepair = "1"
Dropping Routine
This Trojan drops the following files:
- %Program Files%\idol ya poka_\no_lover_simp\svezee_techenie_cheloveko.bat
- %Program Files%\idol ya poka_\no_lover_simp\xranilise_vsei_figni_tut.bok
- %Program Files%\idol ya poka_\no_lover_simp\slooooowthespeedafer.cross
- %Program Files%\idol ya poka_\no_lover_simp\nu kak bi vsua hernya.fos
- %Program Files%\idol ya poka_\no_lover_simp\Uninstall.exe
- %Program Files%\idol ya poka_\no_lover_simp\Uninstall.ini
- slooooowthespeedafer.vbs
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)
This report is generated via an automated analysis system.
SOLUTION
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
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\Microsoft\Windows\CurrentVersion\Uninstall
- no_lover_simp happines loloness_
Step 3
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\Uninstall\no_lover_simp happines loloness_
- DisplayName = "no_lover_simp happines loloness_"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\no_lover_simp happines loloness_
- DisplayIcon = "%Program Files%\idol ya poka_\no_lover_simp\Uninstall.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\no_lover_simp happines loloness_
- UninstallString = "%Program Files%\idol ya poka_\no_lover_simp\Uninstall.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\no_lover_simp happines loloness_
- NoModify = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\no_lover_simp happines loloness_
- NoRepair = "1"
Step 4
Search and delete these components
- %Program Files%\idol ya poka_\no_lover_simp\svezee_techenie_cheloveko.bat
- %Program Files%\idol ya poka_\no_lover_simp\xranilise_vsei_figni_tut.bok
- %Program Files%\idol ya poka_\no_lover_simp\slooooowthespeedafer.cross
- %Program Files%\idol ya poka_\no_lover_simp\nu kak bi vsua hernya.fos
- %Program Files%\idol ya poka_\no_lover_simp\Uninstall.exe
- %Program Files%\idol ya poka_\no_lover_simp\Uninstall.ini
- slooooowthespeedafer.vbs
Step 5
Search and delete these folders
- %User Temp%\$inst
- %Program Files%\idol ya poka_
- %Program Files%\idol ya poka_\no_lover_simp
Step 6
Scan your computer with your Trend Micro product to delete files detected as TROJ_BICOLOLO.AT. 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 this Knowledge Base page for more information.
Step 7
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %User Temp%\$inst\0.tmp
- %User Temp%\$inst\1.tmp
- %User Temp%\$inst\2.tmp
- %User Temp%\$inst\3.tmp
- %User Temp%\$inst\4.tmp
- %User Temp%\$inst\5.tmp
- %User Temp%\$inst\6.tmp
- %User Temp%\$inst\7.tmp
- %User Temp%\$inst\8.tmp
- %User Temp%\$inst\9.tmp
- %User Temp%\$inst\10.tmp
- %User Temp%\$inst\11.tmp
- %User Temp%\$inst\12.tmp
- %User Temp%\$inst\13.tmp
- %User Temp%\$inst\14.tmp
- %User Temp%\$inst\15.tmp
- %User Temp%\$inst\16.tmp
- %User Temp%\$inst\17.tmp
- %User Temp%\$inst\20.tmp
- %User Temp%\$inst\50.tmp
- %User Temp%\$inst\21.tmp
- %User Temp%\$inst\51.tmp
Did this description help? Tell us how we did.