The US-CERT (United States – Computer Emergency Response Team), in response to the sudden increase in popularized computer network penetrations within the United States and abroad, issued a bulletin summarizing what their experts consider to be reasonable security guidelines. Most small businesses, if they really had to do what CERT is asking, would simply start to laugh. Is it because the recommendations are poor? Of course not, they’re all great recommendations that should be followed by everyone. The reason small businesses would laugh is that implementing some of these things is difficult or impossible for them.
Some of it is easy and intelligent: use strong passwords, make sure that the average user has at least an 8 character password, etc. Some of it is intelligent, but not as easy. Change your password every 60 to 90 days. This is good advice, but a lot of users would change their passwords and immediately forget them, or change them and write them down where they could be easily picked up again. Not the result you want. Change the administrator passwords to 15 characters. For most admins in small business, this won’t happen because the admin is also the finance guy, the sales girl, the operations guy, or otherwise has to have the password to do work, but it isn’t the core work to be done. Also, changing administrative passwords usually has consequences beyond the immediate, so it often requires a trip from consultants like us, and that means cost.
Some of the suggestions just won’t be followed. US-CERT advises implementing an intrusion detection system (IDS). There are certainly freeware versions of these, and managed switches have become inexpensive, so you can’t complain that you need to invest a lot of money in a smart switch to use an IDS. However, who’s going to monitor the results? Who can rule out false positives and maintain the system?
As we’ve also noted, the biggest problem for small businesses is patching 3rd party software. Microsoft is easy, but if your users don’t have administrative privileges to their own computers, they can’t install updates for Oracle’s Java; nor Adobe’s Flash, AIR, Reader or other software. If they do have administrative privileges, you’re opening up another potential problem and you have no guarantee that end users will patch their systems as they should.
Overall, the US-CERT message is a good one, but one that small businesses will largely ignore. They’ll evaluate the risks and decide almost immediately that it’s a bad insurance policy. What we really need are better ways to patch common software. If anyone’s built a better mousetrap in regards to this, we here at Vectrocon would love to see it, because so far we haven’t found a reasonable solution for our clients, and both we and they would love to have one.
Rootkit infection requires Windows reinstall, says Microsoft – Computerworld
Monday, June 27th, 2011Rootkit infection requires Windows reinstall, says Microsoft – Computerworld.
This will be a nightmare for those of us who provide technology support for small businesses. If your Windows computer becomes compromised by this exploit, we will be required to completely rebuild your PC. This is the type of thing that truly makes hardened operating systems like Google’s ChromeOS and iOS so attractive.
Although iOS can be hacked, Apple’s tight fisted control of what can easily be put on it, which they seem to be extending to MacOS X with its soon to be released Lion update, makes it much less likely that you will obtain malware on your computer. If you can’t get it at the app store, where Apple engineers have had a chance to review it, you can’t get it at all, or you’ve gone so far out of your way to get around it that you must be an expert, and those who live by the jailbreak die by the jailbreak. The average user, however, benefits from the added protection.
This really brings the value of another technology, desktop virtualization, to the fore. It also begs the question of whether this malware could be installed on a terminal server. If so, any user of the multi-user machine could doom everyone. Patching Oracle’s Java and Adobe’s ubiquitous products just became must more of a pressing issue, as if it wasn’t already important enough.
People talk about the rise of mobility, smartphones, notebooks, tablets and the like being the reason for the coming end of the PC era. I’m beginning to think that it’s security, the true 800 pound gorilla in the room, that’s going to rend the PC into oblivion.
Tags: MBR, no remediation, rebuild, rootkit, security, small business
Posted in Networking, Product and Company Commentary, security | Comments Off