Trojan:Win32/Lockscreen.BO
Posted: December 20, 2011
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.
| Ranking: | 8,599 |
|---|---|
| Threat Level: | 9/10 |
| Infected PCs: | 38,673 |
| First Seen: | December 20, 2011 |
|---|---|
| Last Seen: | February 20, 2025 |
| OS(es) Affected: | Windows |
Trojan:Win32/LockScreen.BO is a dangerous Trojan that blocks affected PC users from accessing the compromised PC by locking the screen and blocking access to the desktop. Trojan:Win32/LockScreen.BO presses victims to purchase an online voucher to send to a remote attacker in order to unlock the computer. However, the computer does not actually get unlocked even if the PC user sends the voucher. Once installed, Trojan:Win32/LockScreen.BO makes system changes. When executed, Trojan:Win32/LockScreen.BO displays the screen, which states that pirated music has been found in the computer and therefore, it is now locked because of this activity. The screen also states that the Performance Rights Organization in Germany (GEMA) is the entity that has located pirated music. However, the screen is bogus and is simply a scam to steal money from trusting PC users. If your PC is infected with Trojan:Win32/LockScreen.BO, do not buy the voucher and send it to the details on the false screen. Trojan:Win32/LockScreen.BO also modifies Internet Explorer settings to allow Active Scripting: Trojan:Win32/LockScreen.BO gathers personal data such as hard disk serial number, computer's IP address, and Windows version running on the targeted machine. Trojan:Win32/LockScreen.BO then transmits it to a remote server. Trojan:Win32/LockScreen.BO also uses this information in the displayed phony screen. The screen is an HTML file located in the same server. Get rid of Trojan:Win32/LockScreen.BO as soon as possible.
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