Ransom.Win32.NOESCAPE.C
Ransom:Win32/NoEscape.MKV!MTB (MICROSOFT)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Ransomware
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It drops files as ransom note.
TECHNICAL DETAILS
Arrival Details
This Ransomware 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 Ransomware drops the following files:
- %Application Data%\CoreSvc.exe -> copy of itself
- %Application Data%\wallpaper.jpg
(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).)
It adds the following processes:
- wmic SHADOWCOPY DELETE /nointeractive
- wbadmin DELETE SYSTEMSTATEBACKUP -deleteOldest
- vssadmin Delete Shadows /All /Quiet
- wbadmin DELETE SYSTEMSTATEBACKUP -keepVersions:0
Other System Modifications
This Ransomware sets the system's desktop wallpaper to the following image:
- {noescape_wallpaper.png}
Process Termination
This Ransomware terminates the following services if found on the affected system:
- Culserver
- DefWatch
- GxBlr
- GxCIMgr
- GxCVD
- GxFWD
- GxVss
- QBCFMonitorService
- QBIDPService
- RTVScan
- SavRoam
- VMAuthdService
- VMUSBArbService
- VMnetDHCP
- VMwareHostd
- backup
- ccEvtMgr
- ccSetMgr
- dbeng9
- dbsrv12
- memtas
- mepocs
- msexchange
- msmdsrv
- sophos
- sql
- sqladhlp
- sqlagent
- sqlbrowser
- sqlservr
- sqlwriter
- svc$
- tomcat6
- veeam
- cmware-converter
- vmware-usbarbitator64
- vss
It terminates the following processes if found running in the affected system's memory:
- 360doctor.exe
- 360se.exe
- Culture.exe
- DefWatch.exe
- GDscan.exe
- MsDtSrvr.exe
- QBCFMonitorService.exe
- QBDBMgr.exe
- QBIDPService.exe
- QBW32.exe
- RAgui.exe
- RTVscan.exe
- agntsvc.exe
- agntsvcencsvc.exe
- agntsvcisqlplussvc.exe
- anvir.exe
- anvir64.exe
- apache.exe
- axlbridge.exe
- backup.exe
- ccleaner.exe
- ccleaner64.exe
- dbeng50.exe
- dbsnmp.exe
- encsvc.exe
- excel.exe
- far.exe
- fdhost.exe
- fdlauncher.exe
- httpd.exe
- infopath.exe
- isqlplussvc.exe
- java.exe
- kingdee.exe
- msaccess.exe
- msftesql.exe
- mspub.exe
- mudesktopqos.exe
- mydesktopservice.exe
- mysqld-nt.exe
- mysqld-opt.exe
- mysqld.exe
- ncsvc.exe
- ocautoupds.exe
- ocomm.exe
- ocssd.exe
- onedrive.exe
- onenote.exe
- oracle.exe
- outlook.exe
- powerpnt.exe
- procexp.exe
- qbupdate.exe
- sqbcoreservice.exe
- sql.exe
- sqlagent.exe
- sqlbrowser.exe
- sqlmangr.exe
- sqlserver.exe
- sqlservr.exe
- sqlwriter.exe
- steam.exe
- supervise.exe
- synctime.exe
- taskkill.exe
- tasklist.exe
- tbirdconfig.exe
- thebat.exe
- thunderbird.exe
- tomcat.exe
- tomcat6.exe
- u8.exe
- ufida.exe
- visio.exe
- wdswfsafe.exe
- winword.exe
- wordpad.exe
- wuauclt.exe
- wxServer.exe
- wxServerView.exe
- xfssvcon.exe
- vmcompute.exe
- vmwp.exe
- vmms.exe
- vds.exe
Information Theft
This Ransomware gathers the following data:
- System Volume Information
- OS Version
- Username
- Hostname
- Processor Information
- System Language
Other Details
This Ransomware adds the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
System
EnableLUA = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
System
ConsentPromptBehavior = 0
It does the following:
- Encrypts local drives (A: to Z:)
- Encrypts network shares
- Deletes all the system state backups from the system
- Deletes shadow copies
Ransomware Routine
This Ransomware avoids encrypting files with the following strings in their file path:
- Recycle Bin
- Windows
- Program Files (x86)
- Public
- ProgramData
- Program Files
- All Users
- Temp
- AppData
- EFI
- Intel
- MSOCache
- Mozilla
- Tor Browser
- boot
- perflogs
- system volume information
- Windows.old
It appends the following extension to the file name of the encrypted files:
- {Original Filename}.{Original Extension}.EACHBHCJFI
It drops the following file(s) as ransom note:
- {Encrypted Directory}\HOW_TO_RECOVER_FILES.txt
SOLUTION
Step 1
Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:
- Mal.Win32.TRX.XXPE50FFF071
Step 2
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 3
Identify and terminate files detected as Ransom.Win32.NOESCAPE.C
- 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 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\Policies\System
- EnableLUA = 0
- EnableLUA = 0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
- ConsentPromptBehaviorAdmin = 0
- ConsentPromptBehaviorAdmin = 0
Step 5
Search and delete this file
- %Application Data%\CoreSvc.exe
- %Application Data%\wallpaper.jpg
Step 6
Scan your computer with your Trend Micro product to delete files detected as Ransom.Win32.NOESCAPE.C. 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:
Step 7
Restore encrypted files from backup.
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