Trojan.Ransomserv
Posted: July 9, 2013
Threat Metric
The following fields listed on the Threat Meter containing a specific value, are explained in detail below:
Threat Level: The threat level scale goes from 1 to 10 where 10 is the highest level of severity and 1 is the lowest level of severity. Each specific level is relative to the threat's consistent assessed behaviors collected from SpyHunter's risk assessment model.
Detection Count: The collective number of confirmed and suspected cases of a particular malware threat. The detection count is calculated from infected PCs retrieved from diagnostic and scan log reports generated by SpyHunter.
Volume Count: Similar to the detection count, the Volume Count is specifically based on the number of confirmed and suspected threats infecting systems on a daily basis. High volume counts usually represent a popular threat but may or may not have infected a large number of systems. High detection count threats could lay dormant and have a low volume count. Criteria for Volume Count is relative to a daily detection count.
Trend Path: The Trend Path, utilizing an up arrow, down arrow or equal symbol, represents the level of recent movement of a particular threat. Up arrows represent an increase, down arrows represent a decline and the equal symbol represent no change to a threat's recent movement.
% Impact (Last 7 Days): This demonstrates a 7-day period change in the frequency of a malware threat infecting PCs. The percentage impact correlates directly to the current Trend Path to determine a rise or decline in the percentage.
| Threat Level: | 8/10 |
|---|---|
| Infected PCs: | 14 |
| First Seen: | July 9, 2013 |
|---|---|
| Last Seen: | October 18, 2020 |
| OS(es) Affected: | Windows |
Trojan.Ransomserv is a Trojan that encrypts files and opens a back door on the affected computer. When Trojan.Ransomserv is executed, it may create the folder called 'C:\ProgramData'. Trojan.Ransomserv strives to terminate all non-operating system services running on the targeted computer. Trojan.Ransomserv then disables 'AutoRun'. Next, Trojan.Ransomserv deletes the contents of the Windows Startup folder. Trojan.Ransomserv then deletes all entries in the registry subkeys. Trojan.Ransomserv then strives to encrypt files found on the corrupted PC. After the files are encrypted, Trojan.Ransomserv displays a ransom message with the headline 'Warning! Access to your computer is limited. Your files have been encrypted'. The target computer user is then requested by Trojan.Ransomserv to pay $4000 US as a ransom for the key to decrypt the files. Trojan.Ransomserv may also open a back door, which allows attackers to gain full remote access and control to the victimized computer.
Technical Details
Registry Modifications
HKEY..\..\..\..{Subkeys}HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunHKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunHKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunHKEY_CURRENT_USER\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run
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