RANSOM_GOOPIC.A
Trojan-Ransom.NSIS.Onion.qym (Kaspersky), VirTool:Win32/CeeInject.GD [non_writable_container] (Microsoft)
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This Trojan modifies Internet Explorer security settings. This puts the affected computer at greater risk, as it allows malicious URLs to be accessed by the computer.
It gathers certain information on the affected computer.
It connects to certain websites to send and receive information.
TECHNICAL DETAILS
110,585 bytes
Yes
14 Jun 2016
Connects to URLs/IPs, Steals information, Encrypts files
Arrival Details
This malware arrives via the following means:
- Rig exploit kit
Installation
This Trojan drops the following file(s)/component(s):
- %Application Data%\Bunch.jVk
- %Application Data%\Purificator.YKM
- %Application Data%\NsResize.dll
- %User Temp%\ns{random value}.tmp\System.dll
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
It drops the following copies of itself into the affected system:
- %AppDataLocal%\service.exe
(Note: %AppDataLocal% is the Application Data folder found in Local Settings, where it is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Services = "%AppDataLocal%\service.exe"
Other System Modifications
This Trojan adds the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\EscDomains\googleapis.com
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\AutoDetect
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\EscDomains\googlecode.com
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\GooglePic\
PCB
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\EscDomains\bootstrapcdn.com
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\EscDomains\exodus99.ru
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\UNCAsIntranet
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\EscDomains\jqueryscript.net
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\EscDomains\bdimg.com
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\GooglePic
PCB = {value}
Web Browser Home Page and Search Page Modification
This Trojan modifies Internet Explorer zone settings.
Information Theft
This Trojan gathers the following information on the affected computer:
- BIOS
- DiskDrive
- CPU Name
- Processor
- Video Controller
Other Details
This Trojan connects to the following website to send and receive information:
- {BLOCKED}99.ru
ip: {BLOCKED}.{BLOCKED}.40.157
It renames encrypted files using the following names:
- {Original Filename}.LOCK
It does the following:
- It deletes shadow copies by executing the following command:
vssadmin.exe Delete Shadows /All /Quiet
SOLUTION
9.800
12.590.07
14 Jun 2016
12.591.00
15 Jun 2016
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
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
Search and delete this file
- %Application Data%\Bunch.jVk
- %Application Data%\Purificator.YKM
- %Application Data%\NsResize.dll
- %User Temp%\ns{random value}.tmp\System.dll
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_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- Services = "%AppDataLocal%\service.exe"
- Services = "%AppDataLocal%\service.exe"
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_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\EscDomains
- googleapis.com = ""
- googleapis.com = ""
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
- AutoDetect = ""
- AutoDetect = ""
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\EscDomains
- googlecode.com = ""
- googlecode.com = ""
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\GooglePic
- PCB = ""
- PCB = ""
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\EscDomains
- bootstrapcdn.com = ""
- bootstrapcdn.com = ""
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\EscDomains
- exodus99.ru = ""
- exodus99.ru = ""
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
- UNCAsIntranet = ""
- UNCAsIntranet = ""
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\EscDomains
- jqueryscript.net = ""
- jqueryscript.net = ""
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\EscDomains
- bdimg.com = ""
- bdimg.com = ""
Step 6
Scan your computer with your Trend Micro product to clean files detected as RANSOM_GOOPIC.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 this Knowledge Base page for more information.
Did this description help? Tell us how we did.