Welcome to the VB2021 conference!

A detailed analysis of a new version of Darkside ransomware (v. 2.1.2.3)

Vlad Pasca (LIFARS)
partner message

Threat Intelligence and Cyber Resilience

https://vblocalhost.com/programme/#TIPS

Join the VB2021 Threat Intelligence Practitioners' Summit (TIPS), sponsored by the Cyber Threat Alliance,

and learn how investment in threat intelligence builds cyber resilience, allowing you to be more effective

when addressing today's dynamic threat landscape.

partner message

Calling all Hackers!

https://www.ise.io/careers/#op-470256-hacker-midseniorprincipal

We are hiring mid-senior-principal level hackers!

Remote option • Flex schedule • Unlimited vacation • Opportunities for research and publication

partner message

VirusTotal: Actionable crowdsourced threat intelligence

https://www.virustotal.com/

Comprehensive context and cutting-edge functionality to proactively protect from cybersecurity threats.

partner message

Ransomware prevention starts with zero

https://www.zscaler.com/solutions/security-transformation/ransomware-protection

Ransomware attacks are increasing 500% year-over-year.

Learn how Zscaler's Zero Trust Exchange helps minimize exposure, damage, and risk

at every stage of a ransomware attack.

partner message

IoT security begins with your Smart TV

https://chomar.link/smarttv

CHOMAR Smart TV Security.

Protect your Android Smart TV against malicious activities and use your IoT devices without any worries.

partner message

F5 helps find malware hiding in plain sight

https://www.f5.com/company/blog/half-the-world-s-malware-is-now-encrypted

Encrypted malware is becoming increasingly common, and daisy-chaining security devices is neither

cost-effective, nor efficient. Detecting and stopping malware doesn’t have to be overwhelming with

F5’s innovative products.

partner message

QI-ANXIN Technology Group Inc. Leader of New Generation Cybersecurity

https://ti.qianxin.com/marketing/vb2021/

QI-ANXIN Technology Group Inc. offers next generation enterprise-class cybersecurity products

and services to government and businesses. QI-ANXIN is the Official Cyber Security Services and

Anti-Virus Software Sponsor of the Olympic and Paralympic Winter Games Beijing 2022.

partner message

Farsight Security DNSDB® is the world's largest real-time and historical database of DNS resolutions

https://www.farsightsecurity.com/get-started-guide/

DNSDB 2.0 introduces Flexible Search support, unlocking both Regular Expressions and Globbing syntaxes for more granular and accurate search results. Get your free DNSDB API key and use it in our newly updated

web GUI, DNSDB Scout as well as your own existing environments. Contextualize everything that is DNS related with one API key - DNSDB.

partner message

Amazon Information Security - come build the future with us!

https://www.amazon.jobs/en-gb/team/infosec

Do you want to work on privacy and security challenges at unprecedented scale?

We have Privacy and Information Security opportunities available now across

the United States, Dublin, Ireland, and Sydney, Australia.

partner message

We don’t just talk about sharing. We do it every day.

https://www.cyberthreatalliance.org/about-cta

Learn how to collaborate with the Cyber Threat Alliance to improve your overall cyber resilience.

We are a greater team when we work together; our collective efforts magnifies our success and

ensures that we are and remain cyber resilient.

partner message

Looking for performance validation for your product?

https://www.virusbulletin.com/testing/

Get an edge over your competitors with Virus Bulletin’s anti-malware & email security certification

programmes, supported by 30+ years of experience. Or take advantage of our bespoke testing service

offering valuable performance feedback for R&D. Email [email protected]

partner message

Stay ahead of threats with VirusTotal

https://www.virustotal.com/

Stay ahead of the next generation of threats and get relevant insights to solve

the most critical security challenges.

partner message

Do you like doing work that matters to you… and really frustrates the bad guys?

https://talosintelligence.com/careers

At Talos, our mission is to make the internet a safer place and fight the good fight for our customers

and users. If you think you have the expertise and attitude to help lead the world in cutting-edge security,

we’d like to talk.

Darkside ransomware is the malware family responsible for the Colonial Pipeline attack that occurred on 7 May 2021. The binary dissected in this research contains an encrypted configuration that will be decrypted using a custom algorithm, which reveals a 22-byte buffer that describes different actions performed by the malware. These actions include: checking the system language and avoiding encryption of Russian-language machines, deleting Shadow copies, wiping the Recycle Bin, ignoring specific files, directories and file extensions, killing specific processes, deleting specific services, etc.

The ransomware can perform privilege escalation using the CMSTPLUA COM interface and achieves persistence by installing itself as a service. The files are encrypted using the custom Salsa20 implementation, with the Salsa20 matrix being encrypted by the public RSA key hard coded in the binary. Darkside uses multi-threading with I/O completion ports to communicate between the main thread and the worker threads responsible for file encryptions. The process generates a random Salsa20 matrix using the RDRAND and RDSEED instructions, as opposed to earlier versions that use the RtlRandomEx function.

Got a question about this presentation? To get in touch with the speaker, contact Vlad on Twitter at @GeeksCyber.
Vlad Pasca
LIFARS

Vlad Pasca is a senior malware and threat analyst at LIFARS LLC with over four years of blue teaming experience. He has taken multiple industry-recognized certifications such as OSCE, OSCP, GREM, eCPTX and he's looking forward to starting to present his research at cybersecurity conferences. Vlad started a malware analysis blog, where he posts relevant research of new malware samples related to groups such as Darkside, Conti, Chinese and Russian APTs.