Posts Tagged ‘worm’

The Name Game – Duh…

Monday, November 23rd, 2009

[Update: well, Sophos have, it seems, gone official on the name iPh/Duh, which I find quite unreasonably irritating. However, Paul's latest blog (link below) includes some very useful info.]

http://www.sophos.com/blogs/duck/g/2009/11/24/clean-up-iphone-worm/

Paul Ducklin, what have you done?

Well, it’s not exactly Paul’s fault, as much as the industry’s: he referred at http://www.sophos.com/blogs/duck/g/2009/11/23/iphone-worm-password/ to the iBot thingie (yes, that again…) as Duh, since there’s no standardized name for it, and “because that is the name which the virus itself gives to the component which strongly differentiates it from the earlier Ikee worm”.

And so, already we have various media sources referring to the Duh worm or Ikee.B. Well, if naming really mattered, I suppose we’d have all the various iPhone malware bits and pieces properly categorized and named by now. Historically, every vendor would have used a different name, of course, but there would have been some minimal cross-referencing and a semi-standard CARO-ish alternative. And probably the latest example (I really don’t like to describe it as a variant) would not have been called Duh because we tend to avoid using the form of name the malware author might have wanted.

Well, I haven’t changed my mind about naming, in general. In most cases, it’s largely irrelevant and often misleading, certainly in the Windows context. When you have many tens of thousands of unique binary samples coming in on a daily basis, accurately cross-referencing and naming them doesn’t seem much of a priority. (See  one of these papers for a more complete picture of why I say that.)

http://www.eset.com/download/whitepapers/cfet2009naming.pdf 
http://www.eset.com/download/whitepapers/Harley-Bureau-VB2008.pdf

So most companies don’t seem to have bothered to name these  at all, even though iPhone malware was obviously going to excite some media interest. Well, exact naming for fairly low-impact threats wasn’t an issue I could raise much interest in either. But the fact is, that journalists and their audiences need a name to hang a malware story on, and they don’t care about the complexities of CARO-like naming (why should they?). So Duh will do, I suppose, especially since Paul as good as endorsed it. (“Perhaps, in fact, Duh is a good name for this virus.”)

What worries me is that at some point, someone is going to point to this as another example of how the AV industry can’t get its act together on naming, even on a platform with few enough threats to count on one hand. Well, we could have sorted this one out easily enough (and still could, in principle), but it will always be Duh now, so we probably won’t bother.

David Harley FBCS CITP CISSP
Chief Operations Officer, AVIEN
Definitely not speaking for the AV industry…

Also blogging at:
http://www.eset.com/threat-center/blog
http://dharley.wordpress.com/
http://blogs.securiteam.com
http://blog.isc2.org/

iPhone worm hits Jailbroken phones

Tuesday, November 10th, 2009

By now the media machine has moved into action and all sorts of nonsense has been spouted about the creation of a worm that spreads on jailbroken iPhones, written by a guy called ‘ikee’. The facts are these,

  1. It ONLY affects jailbroken phones – if your iPhone is not jailbroken then you are not vulnerable
  2. It ONLY affects jailbroken phones that have OpenSSH installed (This involves you having consciously installed OpenSSH)
  3. If you have changed the default passwords for the ‘root‘ and ‘mobile‘ accounts subsequent to installation, you will not be vulnerable to this worm.

It’s tempting to say ‘I told you so’ on this one, as, I actually did state this fact 2 days before the worm was released. On a panel at the AVAR2009 Conference discussing vendor future strategy, someone brought up the idea that the iPhone will be a desirable platform for exploitation. This is true, but as I pointed out, the biggest risk is not so much to users who are using the default OS provided by Apple, because they are in a strictly controlled environment, with Apple as the benevolent dictator, as it is to those users who have jailbroken phones, at which point – you’re on your own.The whole thing does highlight the potential though, there’s no reason why any platform is automagically protected from malware, so it’s no real surprise to anyone that this sort of thing has happened. David Harley (among others) has written more on this subject here, and as always, it’s worth reading.

Andrew Lee CISSP
AVIEN CEO