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Fallout Exploit Kit
First observed in 2018, Fallout is a new exploit kit that is based on the older Nuclear Pack exploit kit.
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First observed in 2018, Fallout is a new exploit kit that is based on the older Nuclear Pack exploit kit.

Affected platforms

The following platforms are known to be affected:

Threat details

At the time of publication, Fallout's distribution method is unknown, however it is probable that it is spread via phishing campaigns.

Fallout exploits two vulnerabilities. The first being a use-after-free vulnerability in Adobe Flash Player (CVE-2018-4878). The second is a vulnerability in the way that Visual Basic Script engines handle objects in system memory (CVE-2018-8174).

Threat updates

Date Update
10 Sep 2018

Further details have emerged regarding Fallout's infection vector and payloads.

The exploit kit is delivered by drive-by-download or malvertising attacks from previously compromised websites. It will fingerprint the user's browser profile in an attempt to match to a target of interest. If successful, the user is redirected to a landing page for the kit.

Once on a device, Fallout will install different malware depending on the user profile collected earlier. Observed payloads include Smoke Loader and GandCrab.

Remediation advice

To prevent and detect an infection, ensure that:

Remediation steps

Type Step
  • A robust program of education and awareness training is delivered to users to ensure they don’t open attachments or follow links within unsolicited emails.
  • All operating systems, anti-virus and other security products are kept up-to-date.
  • Regular anti-virus and security scans are performed on your organisation’s estate.
  • All day-to-day computer activities such as email and internet are performed using non-administrative accounts.
  • Strong password policies are in place.
  • Network, proxy and firewall logs should be monitored for suspicious activity.
  • User accounts accessed from affected devices should be reset on a clean computer.
  • Your organisation adopts a holistic all-round approach to Cyber Security as advocated by the 10 Steps to Cyber Security.

Last edited: 17 February 2020 12:43 pm