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Proprietary Software and Security

Submitted by Roy Schestowitz on Tuesday 27th of July 2021 04:11:46 PM Filed under
Microsoft
Security
  • Microsoft warns attack could compromise Windows domain controllers and servers

    Microsoft has acknowledged a newly-discovered version of an attack on a long-vulnerable Windows single sign-on protocol called NTLM — short for New Technology LAN Manager — that is still used in the operating system as a backup to the newer Kerberos authentication protocol.

  • PlugwalkJoe Does the Perp Walk

    One day after last summer’s mass-hack of Twitter, KrebsOnSecurity wrote that 22-year-old British citizen Joseph “PlugwalkJoe” O’Connor appeared to have been involved in the incident. When the U.S. Justice Department last week announced O’Connor’s arrest and indictment, his alleged role in the Twitter compromise was well covered in the media.

  • South Africa Port Operator Declares Force Majeure Over Cyber Attack

    Transnet SOC Ltd., South Africa’s state-owned ports and freight-rail company, declared force majeure at the country’s key container terminals after disruptions caused by a cyber attack five days ago.

  • [Cr]ackers spreading malware through Discord: Report

    Leading cybersecurity firm Sophos on Monday warned users that popular chat platform Discord is being used by [cr]ackers for spreading malware.

    The firm said that the findings are based on analysis of more than 1,800 malicious files detected by Sophos telemetry on the Discord Content Management Network (CDN).

  • ‘Holy moly!’: Inside Texas’ fight against a ransomware hack [iophk: Windows TCO]

    Texas communities struggled for days with disruptions to core government services as workers in small cities and towns endured a cascade of frustrations brought on by the sophisticated cyberattack, according to thousands of pages of documents reviewed by The Associated Press and interviews with people involved in the response. The AP also learned new details about the attack’s scope and victims, including an Air Force base where access to a law enforcement database was interrupted, and a city forced to operate its water-supply system manually.

  • Chat logs show how Egregor, an $80 million ransomware gang, handled negotiations with little mercy [iophk: Windows TCO]

    Egregor has since disappeared, following an international sting in February. Now, though, more than 100 pages of Egregor negotiation transcripts — obtained and analyzed by IBM Security X-Force and its partner company Cylera, and reviewed by CyberScoop — shed light on the oft-opaque structure of a ransomware operation. The discussion records also demonstrate how victims proved most effective at convincing their extortionists to reduce the amount demanded to decrypt their systems, with one medical organization turning a $15 million ransom into a $2 million payment.

  • Paul E. Mc Kenney: Confessions of a Recovering Proprietary Programmer, Part XVIII: Preventing Involuntary Generosity

    I recently learned that all that is required for someone to take out a loan in some random USA citizen's name is that citizen's full name, postal address, email address, date of birth, and social security number. If you are above a certain age, all of these are for all intents and purposes a matter of public record. If you are younger, then your social security number is of course supposed to be secret—and it will be, right up to that data breach that makes it available to all the wrong people.

    This sort of thing can of course be a bit annoying to our involuntarily generous USA citizen. Fortunately, there are quite a few things you can do, although I will not try to reproduce the entirety of the volumes of good advice that are available out there. Especially given that laws, processes, and procedures are all subject to change.

  • OpenBSD full Tor setup

    If for some reasons you want to block all your traffic except traffic going through Tor, here is how to proceed on OpenBSD.

    The setup is simple and consists at installing Tor, running the service and configure the firewall to block every requests that doesn't come from the user _tor used by Tor daemon.

  • Dead Drops and Security Through Obscurity

    There’s massive confusion in the security community around Security Through Obscurity.

    In general, most people know it’s bad, but they can’t say exactly why. And because of this, people tend to think the “Obscurity” in “Security Through Obscurity” equates to secrecy, meaning if you hide anything, it’s Security Through Obscurity.

    This is incorrect, and Dead Drops are a great example.

  • Preventing Data Exfiltration with eBPF

    Consider a service invoking webhooks. It will be running with limited data access but must be able to communicate with the entire Internet. Contrast that to an SSH session that’s been opened for troubleshooting purposes. It will have access to the entire machine but does not egress to an arbitrary IP.

»

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