Trojan:Win32/Loktrom.B
Posted: January 16, 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: | 9/10 |
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Infected PCs: | 82 |
First Seen: | January 16, 2013 |
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OS(es) Affected: | Windows |
Trojan:Win32/Loktrom.B is a ransomware Trojan that affects PC users in various countries. Trojan:Win32/Loktrom.B locks the targeted computer system and displays a bogus full-screen warning message that covers the desktop. The tricky alert pretends to come from a legal authority which states a relation with Windows and Microsoft Security Essentials. The fake warning message of ransomware demands a ransom from victims to be paid for the imaginary storage of illegal files. Trojan:Win32/Loktrom.B may make continuous changes to the affected PC that make it difficult for the PC user to download, install, run, or update anti-virus software. Trojan:Win32/Loktrom.B may be installed on the vulnerable computer system by other malware infections, or it may enter the PC via a drive-by downloads. When activated, Trojan:Win32/Loktrom.B modifies the registry entries to assure its copy loads every time you start Windows. Trojan:Win32/Loktrom.B can also set the value as a random string in the registry entry.
Technical Details
File System Modifications
Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.
The following files were created in the system:xxx_video.exe
File name: xxx_video.exeSize: 134.99 KB (134997 bytes)
MD5: 7469d2bce990dc340841698795a6174b
Detection count: 82
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: January 22, 2013
2606981.exe
File name: 2606981.exeSize: 92.67 KB (92672 bytes)
MD5: d09c386f3bb13aacf185afbbc87f5802
Detection count: 81
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: January 22, 2013
4655818.exe._
File name: 4655818.exe._Size: 92.67 KB (92672 bytes)
MD5: 930935904e8d2914953b0e3b63be2656
Detection count: 77
Mime Type: unknown/_
Group: Malware file
Last Updated: January 22, 2013
6979999.exe
File name: 6979999.exeSize: 374.29 KB (374299 bytes)
MD5: 87ff01ce77ab71cc4953c6cbca3ef96b
Detection count: 75
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: January 22, 2013
Registry Modifications
HKEY..\..\{Value}HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run "[RANDOM NAME]", for example "S1249087" = "[MALWARE FILE NAME]"HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run "explorer" = "[MALWARE FILE NAME]"HKEY_CURRENT_USER\Software\Microsoft\WindowsNT\CurrentVersion\Winlogon "Shell" = "[MALWARE FILE NAME]"
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