OfficeScan 10 Administrator's Guide - Online Help Home - Trend Micro

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Trend Micro OfficeScan 10 Service Pack 1 Administrator’s Guide About Security Risks 5-2 Security risk is the collective term for viruses/malware and spyware/grayware. OfficeScan protects computers from security risks by scanning files and then performing a specific action for each security risk detected. An overwhelming number of security risks detected over a short period of time signals an outbreak, which OfficeScan can help contain outbreaks by enforcing outbreak prevention policies and isolating infected computers until they are completely risk-free. Notifications and logs help you keep track of security risks and alerts you if you need to take immediate action. Viruses and Malware Tens of thousands of virus/malware exist, with more being created each day. Computer viruses today can cause a great amount of damage by exploiting vulnerabilities in corporate networks, email systems and Web sites. OfficeScan protects computers from the following virus/malware types: Joke Program A joke program is a virus-like program that often manipulates the appearance of things on a computer monitor. Trojan Horse Program A Trojan horse is an executable program that does not replicate but instead resides on computers to perform malicious acts, such as opening ports for hackers to enter. This program often uses a Trojan Port to gain access to computers. An application that claims to rid a computer of viruses when it actually introduces viruses to the computer is an example of a Trojan program. Traditional antivirus solutions can detect and remove viruses but not Trojans, especially those already running on the system.
Protecting Computers from Security Risks Virus A virus is a program that replicates. To do so, the virus needs to attach itself to other program files and execute whenever the host program executes. • ActiveX malicious code: Code that resides on Web pages that execute ActiveX controls • Boot sector virus: A virus that infects the boot sector of a partition or a disk • COM and EXE file infector: An executable program with .com or .exe extension • Java malicious code: Operating system-independent virus code written or embedded in Java • Macro virus: A virus encoded as an application macro and often included in a document • VBScript, JavaScript, or HTML virus: A virus that resides on Web pages and downloads through a browser • Worm: A self-contained program or set of programs able to spread functional copies of itself or its segments to other computers, often through email Test Virus A test virus is an inert file that is detectable by virus scanning software. Use test viruses, such as the EICAR test script, to verify that the antivirus installation scans properly. Packer Packers are compressed and/or encrypted Windows or Linux executable programs, often a Trojan horse program. Compressing executables makes packers more difficult for antivirus products to detect. Probable Virus/Malware Suspicious files that have some of the characteristics of virus/malware are categorized under this virus/malware type. For details about probable virus/malware, see the following page on the Trend Micro online Virus Encyclopedia: http://www.trendmicro.com/vinfo/virusencyclo/default5.asp?VName=POSSIBLE_V IRUS 5-3
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