WEBVTT 00:01.110 --> 00:08.610 Continued with types of malware you also have spyware as the name suggests its main purpose is to gather 00:08.610 --> 00:11.250 information and send it back to the attacker. 00:11.290 --> 00:18.330 Well to spy the attackers don't generally want to cause damage directly but want to compromise your 00:18.330 --> 00:25.830 privacy and anonymity based on some agenda that they've got spyware is intelligence gathering malware 00:26.310 --> 00:31.260 corporations and hacker groups create these as well as governments. 00:31.380 --> 00:38.070 You can see the article here of alleged U.S. government spyware from the Telegraph worth mentioning 00:38.070 --> 00:38.760 actually. 00:38.940 --> 00:42.530 Don't get too hung upon the names and classifications of the malware. 00:42.530 --> 00:49.170 By the way that we've gone through these are not strict taxonomies for example a rootkit can also be 00:49.170 --> 00:53.460 a Trojan Horse someone could call spyware virus. 00:53.460 --> 01:00.200 The point is just to understand the variants that exist and the possible purpose of the malware and 01:00.200 --> 01:07.890 other one is and where which some people consider to be a form of spyware is undesirable software. 01:07.890 --> 01:10.410 The forces advertise on you. 01:10.410 --> 01:13.950 There are millions of different variants of this. 01:14.040 --> 01:21.300 One of the most annoying and destructive form of adware is called Kou web search. 01:21.330 --> 01:27.570 You may even encounter it yourself but there's nothing cool about it at all it hijacks your default 01:27.570 --> 01:31.170 search engine it displays ads in the browser. 01:31.350 --> 01:37.770 When you click on links it sometimes takes you to places that it want you to go to instead of where 01:37.770 --> 01:45.450 you want to actually go to and it actively defends itself from being removed and getting rid of it. 01:45.480 --> 01:48.240 So it's particularly hard to shift. 01:48.240 --> 01:54.600 And there are many many variants of it that were affected millions of people when an ad where all malware 01:54.600 --> 01:59.290 takes over your browser in this way is known as browser hijacking. 01:59.490 --> 02:05.130 And you might hear that term more throughout the course you should always pay particular attention when 02:05.130 --> 02:14.580 installing software because often a software install includes optional installs such as this browser 02:14.580 --> 02:16.770 highjacker that we've just mentioned. 02:16.830 --> 02:17.950 So you can see here. 02:17.970 --> 02:25.250 Optional installs and what you've got here is installs that are going to be potential Ad-Aware. 02:25.650 --> 02:28.470 So be very careful what you agree to install. 02:28.470 --> 02:31.500 Always opt for the custom installation and de-select. 02:31.500 --> 02:38.520 Anything that is not familiar especially optional software that you never wanted to download and install 02:38.520 --> 02:39.830 in the first place. 02:39.900 --> 02:44.220 It goes without saying that you should not install software that you don't trust. 02:44.310 --> 02:48.680 Sometimes your device might come with and where pre-installed. 02:48.690 --> 02:56.400 If you're particularly on Lucky One of the worst cases was Lenovo pre-install ING's superficies adware 02:56.880 --> 03:03.250 that only served you add that based on what it knew about you from spying on you. 03:03.270 --> 03:10.970 It also included a self-signed certificate allowing your browser TLR and SSL encryption to be bypassed. 03:10.980 --> 03:17.580 So not very good over and over by our Never bile and over laptop again after that and all the rest of 03:17.580 --> 03:20.770 the things that were never done scare away. 03:20.890 --> 03:27.360 Skyway is a type of social engineering attack to trick a person into believing in a threat that isn't 03:27.360 --> 03:28.520 really real. 03:28.800 --> 03:36.600 So a common example is fake security software claiming that you have malware infections or something 03:36.600 --> 03:37.430 like that. 03:37.470 --> 03:42.810 Often they want you to pay something in order to fix the fake problem. 03:42.810 --> 03:46.050 These scams have been extremely successful. 03:46.050 --> 03:53.840 You can see here personal anti-virus software identifying all these fake their abilities and then is 03:53.850 --> 03:55.070 going to keep popping up. 03:55.080 --> 04:02.160 It's going to keep causing problems on the machine and then people are fooled into paying for something 04:02.160 --> 04:05.390 to remove the fake viruses. 04:05.520 --> 04:08.400 And finally we have this catch all term. 04:08.520 --> 04:12.330 If it's something that you might not have wanted. 04:12.450 --> 04:19.710 These are called potentially wanted programs or pull ups that could potentially be monitored because 04:19.770 --> 04:24.660 the antivirus companies and people the attempt to remove these things aren't quite sure whether you 04:24.660 --> 04:25.880 want them or not. 04:26.010 --> 04:31.350 Most often you don't want them and they're annoying the things bundled them with software. 04:31.350 --> 04:36.090 So again they are often bundling with the software when you install. 04:36.090 --> 04:42.720 So you must make sure when you install software you go to the custom install and make sure you remove 04:42.750 --> 04:44.370 any of these pops.