Why are we still getting caught by the ‘Phisher’men?

0

Phishing attacks have been on the increase and have overtaken malware as the most popular cyber attack method. Attackers are often able to convincingly impersonate users and domains, bait victims with fake cloud storage links, engage in social engineering and craft attachments that look like ones commonly used in the organisation.

Criminal scammers are using increasingly sophisticated methods by employing more complex phishing site infrastructures that can be made to look more legitimate to the target. These include the use of well-known cloud hosting and document sharing services, established brand names which users believe are secure simply due to name recognition. For example, Microsoft, Amazon and Facebook are top of the hackers list. Gone are the days when phishing simply involved the scammer sending a rogue email and tricking the user into clicking on a link!

And while we mostly associate phishing with email, attackers are taking advantage of a wide variety of attack methods to trick their victims. Increasingly, employees are being subjected to targeted phishing attacks directly in their browser with highly legitimate looking sites, ads, search results, pop-ups, social media posts, chat apps, instant messages, as well as rogue browser extensions and free web apps

HTML phishing is a particularly effective means of attack where it can be delivered straight into browsers and apps, bypassing secure email gateways, next-generation antivirus endpoint security systems and advanced endpoint protections. These surreptitious methods are capable of evading URL inspections and domain reputation checking.

To make matters worse, the lifespan of a phishing URL has decreased significantly in recent years. To evade detection, phishing gangs can often gather valuable personal information in around 45 minutes. The bad guys know how current technologies are trying to catch them, so they have devised imaginative new strategies to evade detection. For instance, they can change domains and URLs fast enough so the blacklist-based engines cannot keep up. In other cases, malicious URLs might be hosted on compromised sites that have good domain reputations. Once people click on those sites, the attackers have already collected all the data they need within a few minutes and moved on.

Only the largest firms have automated their detection systems to spot potential cyberattacks. Smaller firms are generally relying on manual processes – or no processes at all. This basic lack of protection is a big reason why phishing for data has become the first choice for the bad actors, who are becoming much more sophisticated. In most cases, employees can’t even spot the fakes, and traditional defences that rely on domain reputation and blacklists are not enough.

By the time the security teams have caught up, those attacks are long gone and hosted somewhere else. Of the tens of thousands of new phishing sites that go live each day, the majority are hosted on compromised but otherwise legitimate domains. These sites would pass a domain reputation test, but they’re still hosting the malicious pages. Due to the fast-paced urgency of this threat, financial institutions should adopt a more modern approach to defend their data. This involves protections that can immediately determine the threat level in real-time and block the phishing hook before they draw out valuable information..

  • Always check the spelling of the URLs in email links before you click or enter sensitive information
  • Watch out for URL redirects, where you’re subtly sent to a different website with identical design
  • If you receive an email from a source you know but it seems suspicious, contact that source with a new email, rather than just hitting reply
  • Don’t post personal data, like your birthday, vacation plans, or your address or phone number, publicly on social media

We have started to work with Ironscales, a company which provides protection utilising machine learning to understand normal behaviours of users email interactions. It highlights (and can automatically remove) emails from the user’s inbox before they have time to open them. They cross reference this information with a multiple of other sources and the actions of their other client’s SOC analysts. This massively reduces the overhead in dealing with phishing or potential phishing emails and ensures that users are aware of the risks. Some great day to day examples include the ability to identify that an email has come from a slightly different email address or IP source. The product is being further developed to identify changes in grammar and language to highlight where a legitimate email address from a known person may have been compromised. We really like the ease of use of the technology and the time saved on investigation & resolution.

If you would like to try Ironscales out, then please let us know?

 

Phishing criminals will continue to devise creative new ways of attacking your networks and your employees. Protecting against such attacks means safeguarding those assets with equal amounts of creativity.

RSS Feed Subscribe to our RSS Feed

Posted on : 26-09-2019 | By : kerry.housley | In : Cyber Security, data security, Finance, Innovation

Tags: , , , , , , ,

Write a comment