A small marketing firm recently received an email that appeared to be from a long-time logistics partner. The subject line read Thinking it was a routine business document, the office manager downloaded and opened the compressed folder.
: A piece of malware called a Trojan installed itself in a hidden folder. It didn't pop up any windows or show any errors, allowing it to stay undetected by basic security software. Pus.zip
: It then used the office manager’s email account to send copies of itself (disguised as Pus.zip ) to everyone in her contact list, making the infection look like it came from a trusted source. A small marketing firm recently received an email
in your operating system so you can see if a file ending in .pdf.exe is trying to trick you. It didn't pop up any windows or show
Inside was a single file that looked like a PDF but was actually an executable program. The moment it was opened, several things happened simultaneously: