Massive spam attacks are nowadays being run by hackers to infect PCs tremendously with all kinds of cyber threats. They send unsolicited spam to various addressees with attachments that contain viruses. For example, there are many dangerous emails that are nowadays being received by users with postal_receipt.exe attachments (also in some cases with postal_receipt.zip attachments, by the way). These attachments, upon execution, bring serious malwares into your system. In many cases this is a special trojan installer that may not even show its real plans immediately. However, upon execution this file will write itself down into your registry and will wait until the command is given by hackers to do some other actions directed at further, more serious process of infecting your PC.
These dangerous emails with postal_receipt.exe (postal_receipt.zip) attachments may be received and may look as the ones supposedly coming from USPS (the United States Postal Service) or Fedex, or DHL postal and delivery companies. In the majority of the cases the fake email says that some alleged postman came to the door of your house while you were away, with the attempt to hand-in some parcel or letter. In order to receive the letter, the malicious email says, you are to go to one of the local offices of one of these companies and indicate the special postal receipt, allegedly contained in the attachment. Thus, when users actually open this attachment, they get a virus installed onto their system. The virus, as we’ve said, might not immediately infect your system. However, this may take place sooner or later. Hence, be careful and avoid executing all such suspicious executables. Finally, make sure to scan your system with the help of GridinSoft Trojan Killer, the powerful security software in your arsenal.
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