Malware
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Video Transcription
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>> Hello. Okay, how do we defend against malware?
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The best way to deal with
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>> malware is to just not get it.
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>> You do this by having
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good anti-malware software installed.
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It should include antivirus scanning
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and some behavior-based scans.
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That is kept up-to-date with
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>> the virus definition files.
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>> It should include anti-spyware and anti adware,
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and you need to make sure that
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>> you have your system scan
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>> regularly and make sure
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you keep the definition files up-to-date.
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The threat landscape is changing all the time,
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so it's important to stay up-to-date.
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Usually this is something that
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network administrators will take care of.
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You also need to make sure you
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are patching systems that need it.
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Often when news of malware makes it into the media,
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a remedy for it will already be available.
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But it's hard to keep up with all the patches,
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so you need to have a system that
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makes it easy to stay up to date.
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If you are not familiar with
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Microsoft Patch Tuesday, you will be.
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Microsoft dumps tons of updates out regularly,
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and you need a way to prioritize
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the patches to keep up with.
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Another good defense against
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malware is make sure you have
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good clean baseline images
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that you can revert back to you if you need to.
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Then also change management
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>> and configuration management.
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>> System should be locked down so that users
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can't install any piece of software that they want.
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Especially users who are guest to the network.
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Everyday users should not be making
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changes to the baseline images of the systems.
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If you allow users to make changes, they will.
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When I got started as
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a help desk technician in the mid-1990s,
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I remember getting a call from an end-user.
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The persons of their system was performing solely,
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so I got there and I took a look at
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the system and the person
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had bands I buddy running on it.
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I don't know if you're familiar with this,
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but it was a purple gorilla
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that would follow your mouse all over the screen,
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and back then with one megabyte of memory on machines,
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something like that would take up a lot of
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resources and make things perform solely.
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Today change management would
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prevent a user from downloading something like that,
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potentially introducing malware onto the system.
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Your big takeaways in the world of malware,
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malware can get distributed in a lot of different ways,
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it can take on a lot of different forms.
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Be particularly careful for Trojans.
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These are things that people download
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because they seem like they would be helpful,
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but they're actually infected with malicious software.
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You can have viruses and worms.
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The big difference between
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>> the two is that a virus needs
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>> a user action and it needs
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a host to live on like an application.
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Whereas a worm spreads from system to system to system.
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The best way to deal with malware is just don't get it.
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Use good anti-malware software.
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Update your systems, run your scans regularly,
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lock your users down with good policies,
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so they don't install garbage on your systems.
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