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Irish health service hit by cyber attack

bbc.co.uk

91–100 of 156 posts

Re: Irish health service hit by cyber attack

#91
post #5

What kinda scummy scrote you have to be to attack health services during a pandemic. This is a new low.

Disclaimer: I dont really beleive this, however...

The information surrounding the current pandemic within Ireland is heavily scewed in one direction, there is no room for any questions, without being labled as something. What if, someone decided to check the information for themselves. Just a thought, [removes crazy hat made from tinfoil]

Re: Irish health service hit by cyber attack

#92

One of the major issues I've seen while working with large organisation on software development is one of mindset. These are organisations who predominantly think: "We are an 'x' organisation that happens to develop software". The more productive and safer way of thinking is: "We are a software development organisation that is within 'x' market". However, the latter requires a huge mindset and experience shift from t…

What if software development isn't the most technically challenging aspect of their operation? Say spaceX or a nuclear physics lab?

Or healthcare?

Re: Irish health service hit by cyber attack

#93

A lot of these articles don't actually mention specifically how the systems were compromised. Was it a malicious email attachment that propagated through unsecured networks or outdated OS versions? And what data was encrypted? Are we talking regular excel files or actual databases? It would be interesting to have some more detail or case studies so others could know how to fortify infection points and limit the blast…

We don't usually get those details published in the case of events, but as someone who's seen more ransomware than I want to admit to, nearly every case comes down to either a word macro, or a .js file inside a zip file. Both of which are easily blocked with a GPO.

These guys do a lot of honeypot writeups that are pretty consistent with my experience: https://thedfirreport.com/

Re: Irish health service hit by cyber attack

#94
Odd effect of this is that it would be difficult to distinguish encrypted backups from ransomware encrypted files being backed up.

Cloud documents like Word and Google docs seem less susceptible, as writing a content parser for each file format to encrypt it would be a higher bar. Or am I missing something there?

It also suggests there could be a market for cryptocurrency futures as a form of insurance. This is one extreme situation where you are forced to buy a currecy at market prices, but I suspect it's the first of more.

Re: Irish health service hit by cyber attack

#95
post #64

I have a feeling there is a very short security-hygiene checklist that, if followed, could prevent the vast majority of the ransomware attacked that we have seen in the last few years. * Keep all systems up to date with the latest patches. * Have a DR plan and test it regularly. * Make frequent backups, verify them, and keep them offline . Historically organizations have been so bad at backups that the advice has bee…

The Critical Security Controls [1] are a good place to start. Alas, it's neither free or necessarily straightforward to implement them - which is why breaches persist.

[1] https://www.cisecurity.org/controls/cis-controls-list/

Re: Irish health service hit by cyber attack

#96

Earlier quoted context omitted.

So I don't have details on this specific case, but I did work in cybersecurity and can comment on the vast majority of similar cases I saw, including some which made the front page. Every single one I remember came from unpatched OS vulnerabilities for which the patch was already available. Regular patching is necessary hygiene for corporate IT, but often the department is understaffed, or frankly told by management…

Most corporate machines aren't directly on the internet though... How do attackers get through corporate firewalls to access said unpatched machines? I would guess the easiest way is to phish a login to the corp VPN or to send an email with a malicious attachment to give the attacker something inside the corp firewall as a place to start their port scan of the internal network and begin their attacks.

MITREs ATTaCK [1] matrix is a great resource for describing incidents like these. To answer your question, it is a combination of Initial Access and Lateral Movement techniques that depend upon an attackers aims. They're by no means the only activities involved of course.

https://attack.mitre.org/

Re: Irish health service hit by cyber attack

#97
post #64

I have a feeling there is a very short security-hygiene checklist that, if followed, could prevent the vast majority of the ransomware attacked that we have seen in the last few years. * Keep all systems up to date with the latest patches. * Have a DR plan and test it regularly. * Make frequent backups, verify them, and keep them offline . Historically organizations have been so bad at backups that the advice has bee…

To be honest, it seems like a lot of part-time hobby projects created by single engineers have better security practices than whole government agencies.

Re: Irish health service hit by cyber attack

#98
post #64

I have a feeling there is a very short security-hygiene checklist that, if followed, could prevent the vast majority of the ransomware attacked that we have seen in the last few years. * Keep all systems up to date with the latest patches. * Have a DR plan and test it regularly. * Make frequent backups, verify them, and keep them offline . Historically organizations have been so bad at backups that the advice has bee…

To be honest, it seems like a lot of part-time hobby projects created by single engineers have better security practices than whole government agencies.

And there’s a good reason for that - security is a human activity as well as a technology, and the more people involved in an organization, the greater the opportunity for miscommunication and diffusion of responsibility.

It’s easier to get it right when you can put your arms around the whole thing.

Re: Irish health service hit by cyber attack

#100
post #64

I have a feeling there is a very short security-hygiene checklist that, if followed, could prevent the vast majority of the ransomware attacked that we have seen in the last few years. * Keep all systems up to date with the latest patches. * Have a DR plan and test it regularly. * Make frequent backups, verify them, and keep them offline . Historically organizations have been so bad at backups that the advice has bee…

> dial back on the automation and invest manual effort in airgapping the backups

Can we please call it The Department of Redundancy Department?

Jokes aside it seems that the DR, backups, and system images (i.e. installation including patches) that you mention are all related and it could make sense to dedicate a role or team to it. We split out things like networking and security into their own teams when we want them to be taken seriously.

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