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Ransomware 1H 2017 review: Global outbreaks reinforce the value of security hygiene

Ransomware 1H 2017 review: Global outbreaks reinforce the value of security hygiene

Security
In the first six months of 2017, ransomware threats reached new levels of sophistication. The same period also saw the reversal of a six-month downward trend in ransomware encounters. New ransomware code was released at a higher rate with increasing ... continue reading
Figure 1. Infection cycle overview

Exploring the crypt: Analysis of the WannaCrypt ransomware SMB exploit propagation

Security
On May 12, there was a major outbreak of WannaCrypt ransomware. WannaCrypt directly borrowed exploit code from the ETERNALBLUE exploit and the DoublePulsar backdoor module leaked in April by a group calling itself Shadow Brokers. Using ETERNALBLUE, WannaCrypt propagated as ... continue reading
Windows 10 platform resilience against the Petya ransomware attack

Windows 10 platform resilience against the Petya ransomware attack

Security
The Petya ransomware attack on June 27, 2017 (which we analyzed in-depth in this blog) may have been perceived as an outbreak worse than last month's WannaCrypt (also known as WannaCry) attack. After all, it uses the same SMB exploit ... continue reading
New ransomware, old techniques: Petya adds worm capabilities

New ransomware, old techniques: Petya adds worm capabilities

Security
(Note: We have published a follow-up blog entry on this ransomware attack. We have new findings from our continued investigation, as well as platform mitigation and protection information: Windows 10 platform resilience against the Petya ransomware attack.) On June 27, ... continue reading
Analysis of the Shadow Brokers release and mitigation with Windows 10 virtualization-based security

Analysis of the Shadow Brokers release and mitigation with Windows 10 virtualization-based security

Security
On April 14, a group calling themselves the Shadow Brokers caught the attention of the security community by releasing a set of weaponized exploits. Shortly thereafter, one of these exploits was used to create wormable malware that we now know ... continue reading
wannacrypt1

WannaCrypt ransomware worm targets out-of-date systems

Security
On May 12, 2017 we detected a new ransomware that spreads like a worm by leveraging vulnerabilities that have been previously fixed. While security updates are automatically applied in most computers, some users and enterprises may delay deployment of patches ... continue reading