Trojan:W32/Napolar downloads, installs and executes other malware on the infected system.
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
Trojan:W32/Napolar is distributed in malicious files sent out as attachments to Facebook messages.
When the attachment is launched, the malware copies itself onto the system at the location:
Depending on the system, the name used by the copied file may be either lsass.exe or entirely random.
Napolar will also install a user-mode rootkit that hides its files in the system and injects itself into newly created system processes; the rootkit hides the copied file so that it can't be directly seen with Windows Explorer.
While active on the machine, Napolar downloads, installs and executes other malicious files. One malware known to be downloaded and run by Napolar is Win32/Vicenor, which uses the system to silently mine for Bitcoin digital currency.
Napolar can also steal the user's account details and use the system to launch a Distributed Denial of Service (DDoS) attack or act as a SOCKS proxy server.
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