Incidents

More WMF vulnerabilties detected

Yesterday information about another Windows’ WMF handling vulnerability was published.

This time two different functions are exploited, “ExtCreateRegion” and “ExtEscape”. This is in contrast to the “SetAbortProc” function which has been exploited very actively by the vulnerability we have recently blogged about.

This doesn’t look too good for Microsoft, with a new vulnerability in the same file that a patch was just released for.

However it’s not as bad as it seems, as this time it’s not possible to execute arbitrary code. The exploitation is limited to Denial of Service.

In other words, the program which is trying to view the malformed WMF file will crash and that’s it.

More WMF vulnerabilties detected

Your email address will not be published. Required fields are marked *

 

Reports

Operation TunnelSnake

A newly discovered rootkit that we dub ‘Moriya’ is used by an unknown actor to deploy passive backdoors on public facing servers, facilitating the creation of a covert C&C communication channel through which they can be silently controlled. The victims are located in Africa, South and South-East Asia.

APT trends report Q1 2021

This report highlights significant events related to advanced persistent threat (APT) activity observed in Q1 2021. The summaries are based on our threat intelligence research and provide a representative snapshot of what we have published and discussed in greater detail in our private APT reports.

The leap of a Cycldek-related threat actor

The investigation described in this article started with one such file which caught our attention due to the various improvements it brought to this well-known infection vector.

Subscribe to our weekly e-mails

The hottest research right in your inbox