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Global Internet Security Alerts


  • Backdoor!Online
    This detection from the F-Secure Security Cloud identifies a file with behavior or characteristics that match known backdoors.
  • Trojan!Online
    This detection from the F-Secure Security Cloud identifies a file with behavior or characteristics that match known trojans.
  • Gen:Variant.Application.Bundler
    Gen:Variant.Application.Bundler identifies software that is distributed bundled together with other components or programs.
  • Trojan.Phishing
    Phishing trojans are files that are designed to look legitimate, but are really delivery vehicles for malware. The trojans are usually distributed as file attachments to email messages which are crafted to look legitimate. If the file is opened, embedded code will either drop and install malware onto the user's device, or will download malware from a remote site to install on the device.

Virus Activity

The World Map is a visual tool for presenting geographically grouped summaries of known virus infections.

View up-to-date map »

Safety Tip

Double-check If you feel that an e-mail you get from a friend is somehow strange - if it is in a foreign language or if it just says odd things, double-check with the friend before opening any attachments.

Security Terms

Buffer Overflow

A vulnerability in programs which do not adequately manage memory allocation. In certain circumstances, exploit code can use excessive amounts of data to exploit this vulnerability and force the program to write data beyond their specified memory allocations.

Technically, there are a few types of buffer overflows, depending on how the program handles the data overflow. In practical terms, all buffer overflows can force the targeted program to crash, delete data, or allow the attacker to transform the computer into a zombie.

PC Health Toolbox

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