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Short-Lived Certificates Coming to Let’s Encrypt

Schneier on Security

This is a big upgrade for the security of the TLS ecosystem because it minimizes exposure time during a key compromise event. Specifically, certificates with a lifetime of six days.

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Another Event-Related Spyware App

Schneier on Security

This month, it’s Egypt’s COP27 Summit app : The app is being promoted as a tool to help attendees navigate the event. Even messages shared via encrypted services like WhatsApp are vulnerable, according to POLITICO’s technical review of the application, and two of the outside experts.

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Microsoft Can Fix Ransomware Tomorrow

Adam Shostack

It starts: Recently, I was at a private event on security by design. Ransomware works by going through files, one by one, and replacing their content with an encrypted version. Because you can't encrypt a file until you can open it, this would have a dramatic impact on ransomware.

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Codefinger ransomware gang uses compromised AWS keys to encrypt S3 bucket

Security Affairs

The ransomware group Codefinger is using compromised AWS keys to encrypt S3 bucket data using SSE-C, Halcyon researchers warn. The ransomware group Codefinger has been spotted using compromised AWS keys to encrypt data in S3 buckets. The ransomware group Codefinger utilizes an AES-256 encryption key they generate and store locally.

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Bitdefender released a decryptor for the ShrinkLocker ransomware

Security Affairs

Bitdefender released a decryptor for the ShrinkLocker ransomware, which modifies BitLocker configurations to encrypt a system’s drives. Unlike modern ransomware it doesn’t rely on sophisticated encryption algorithms and modifies BitLocker configurations to encrypt a system’s drives.

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Encryption Policy

Tech Republic Security

Encryption is vital for securing data, whether in transit or stored on devices. It can provide peace of mind that communications will not be intercepted and that sensitive information stored on devices can’t be exfiltrated in the event of loss or theft.

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Scam Information and Event Management

SecureList

This script launches a BAT file which extracts the next element of the attack chain from an encrypted archive. CustomAction field value in the MSI file The BAT file from autorun extracts the encrypted RAR archive and runs the “start” command with two DLL files as arguments — these were previously extracted from the archive.

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