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Unveiling the Fallout: Operation Cronos' Impact on LockBit Following Landmark Disruption
Unveiling the Fallout: Operation Cronos' Impact on LockBit Following Landmark Disruption
  • On Feb. 19, 2024, Operation Cronos, a targeted law enforcement action, caused outages on LockBit-affiliated platforms, significantly disrupting the notorious ransomware group's operations. LockBit’s downtime was quickly followed by a takeover of its leak site by the UK’s National Crime Agency (NCA), spotlighting the concerted international effort against cybercrime. Authorities leveraged the compromised LockBit leak site to distribute information about the group and its operations, announce arrests, sanctions, cryptocurrency seizure, and more. This demonstrated support for affected businesses and cast doubt on LockBit's promises regarding data deletion post-ransom payment — emphasizing that paying ransoms is not the best course of action. Trend Micro analyzed LockBit-NG-Dev, an in-development version of the ransomware. Key findings indicated a shift to a .NET core, which allows it to be more platform-agnostic and emphasizes the need for new security detection techniques. The leak of LockBit's back-end information offered a glimpse into its internal workings and disclosed affiliate identities and victim data, potentially leading to a drop in trust and collaboration within the cybercriminal network. The sentiments of the cybercrime community to LockBit's disruption ranged from satisfaction to speculation about the group’s future, hinting at the significant impact of the incident on the ransomware-as-a-service (RaaS) industry. Businesses can expect shifts in RaaS tactics and should enhance preparedness against potential reformations of the disrupted group and its affiliates. Contrary to what the group themselves have stated, activities observed post-disruption would indicate that Operation Chronos has a significant impact on the group’s activities.
·trendmicro.com·
Unveiling the Fallout: Operation Cronos' Impact on LockBit Following Landmark Disruption
HTTP/2 CONTINUATION Flood: Technical Details
HTTP/2 CONTINUATION Flood: Technical Details
Deep technical analysis of the CONTINUATION Flood: a class of vulnerabilities within numerous HTTP/2 protocol implementations. In many cases, it poses a more severe threat compared to the Rapid Reset: a single machine (and in certain instances, a mere single TCP connection or a handful of frames) has the potential to disrupt server availability, with consequences ranging from server crashes to substantial performance degradation. Remarkably, requests that constitute an attack are not visible in HTTP access logs. **A simplified security advisory and the list of affected projects can be found in: http2-continuation-flood
·nowotarski.info·
HTTP/2 CONTINUATION Flood: Technical Details
Kobold letters
Kobold letters
Anyone who has had to deal with HTML emails on a technical level has probably reached the point where they wanted to quit their job or just set fire to all the mail clients due to their inconsistent implementations. But HTML emails are not just a source of frustration, they can also be a serious security risk.
·lutrasecurity.com·
Kobold letters
Google sues alleged China crypto app racketeers: Report
Google sues alleged China crypto app racketeers: Report
Google’s parent company, Alphabet, has filed a lawsuit against two people based in China for using the company’s platform for scam cryptocurrency apps that amassed over 100,000 downloads. Alphabet claims that scammers used its platforms, Google Play and YouTube, to upload and advertise fraudulent crypto apps.
·cointelegraph.com·
Google sues alleged China crypto app racketeers: Report
North Korea’s Post-Infection Python Payloads – One Night in Norfolk
North Korea’s Post-Infection Python Payloads – One Night in Norfolk
Throughout the past few months, several publications have written about a North Korean threat actor group’s use of NPM packages to deploy malware to developers and other unsuspecting victims. This blog post provides additional details regarding the second and third-stage malware in these attacks, which these publications have only covered in limited detail.
·norfolkinfosec.com·
North Korea’s Post-Infection Python Payloads – One Night in Norfolk
‘The Manipulaters’ Improve Phishing, Still Fail at Opsec
‘The Manipulaters’ Improve Phishing, Still Fail at Opsec
Roughly nine years ago, KrebsOnSecurity profiled a Pakistan-based cybercrime group called "The Manipulaters," a sprawling web hosting network of phishing and spam delivery platforms. In January 2024, The Manipulaters pleaded with this author to unpublish previous stories about their work,…
·krebsonsecurity.com·
‘The Manipulaters’ Improve Phishing, Still Fail at Opsec
XZ Utils Supply Chain Puzzle: Binarly Ships Free Scanner for CVE-2024-3094 Backdoor
XZ Utils Supply Chain Puzzle: Binarly Ships Free Scanner for CVE-2024-3094 Backdoor
On March 29, right before Easter weekend, we received notifications about something unusual happening with the open-source project XZ Utils, which provides lossless data compression on virtually all Unix-like operating systems, including Linux. The initial warning was sent to the Open Source Security mailing list sent by Andres Freund, who discovered that XZ Utils versions 5.6.0 and 5.6.1 are impacted by a backdoor. A few hours later, the US government’s CISA and OpenSSF warned about a critical problem: an installed XZ backdoored version could lead to unauthorized remote access.
·binarly.io·
XZ Utils Supply Chain Puzzle: Binarly Ships Free Scanner for CVE-2024-3094 Backdoor
China-linked Hackers Deploy New 'UNAPIMON' Malware for Stealthy Operations
China-linked Hackers Deploy New 'UNAPIMON' Malware for Stealthy Operations
A threat activity cluster tracked as Earth Freybug has been observed using a new malware called UNAPIMON to fly under the radar. "Earth Freybug is a cyberthreat group that has been active since at least 2012 that focuses on espionage and financially motivated activities," Trend Micro security researcher Christopher So said in a report published today.
·thehackernews.com·
China-linked Hackers Deploy New 'UNAPIMON' Malware for Stealthy Operations
Introducing Sunlight, a CT implementation built for scalability, ease of operation, and reduced cost - Let's Encrypt
Introducing Sunlight, a CT implementation built for scalability, ease of operation, and reduced cost - Let's Encrypt
Let’s Encrypt is proud to introduce Sunlight, a new implementation of a Certificate Transparency log that we built from the ground up with modern Web PKI opportunities and constraints in mind. In partnership with Filippo Valsorda, who led the design and implementation, we incorporated feedback from the broader transparency logging community, including the Chrome and TrustFabric teams at Google, the Sigsum project, and other CT log and monitor operators. Their insights have been instrumental in shaping the project’s direction.
·letsencrypt.org·
Introducing Sunlight, a CT implementation built for scalability, ease of operation, and reduced cost - Let's Encrypt
research!rsc: The xz attack shell script
research!rsc: The xz attack shell script
Andres Freund published the existence of the xz attack on 2024-03-29 to the public oss-security@openwall mailing list. The day before, he alerted Debian security and the (private) distros@openwall list. In his mail, he says that he dug into this after “observing a few odd symptoms around liblzma (part of the xz package) on Debian sid installations over the last weeks (logins with ssh taking a lot of CPU, valgrind errors).” At a high level, the attack is split in two pieces: a shell script and an object file. There is an injection of shell code during configure, which injects the shell code into make. The shell code during make adds the object file to the build. This post examines the shell script. (See also my timeline post.)
·research.swtch.com·
research!rsc: The xz attack shell script
OWASP Data Breach Notification
OWASP Data Breach Notification
  • Who is affected? If you were an OWASP member from 2006 to around 2014 and provided your resume as part of joining OWASP, we advise assuming your resume was part of this breach. * What data was exposed? The resumes contained names, email addresses, phone numbers, physical addresses, and other personally identifiable information.
·owasp.org·
OWASP Data Breach Notification
Website networks in Europe used as tools for Russian information warfare
Website networks in Europe used as tools for Russian information warfare
The Putin regime conducts large-scale propaganda not only through its state media but also through “useful idiots,” who focus on demonizing the US, EU, and NATO and have right- or left-wing views. New “multilingual international media” have emerged that write in a way that suits the Kremlin and spread pro-Russian narratives and disinformation, replacing Russia Today and Sputnik, which have received a ban in Europe.
·informnapalm.org·
Website networks in Europe used as tools for Russian information warfare
Vulnerabilities Year-in-Review: 2023
Vulnerabilities Year-in-Review: 2023
In 2023, threat actors continued to exploit a variety of vulnerabilities — both newly discovered weaknesses and unresolved issues — to carry out sophisticated attacks on global organizations. The number of documented software vulnerabilities continued to rise, and threat actors were quick to capitalize on new vulnerabilities and leverage recent releases of publicly available vulnerability research and exploit code to target entities. However, while there was a high number of vulnerabilities released in the reporting period, only a handful actually were weaponized in attacks. The ones of most interest are those that threat actors use for exploitation. In this report, we’ll analyze the numbers and types of vulnerabilities in 2023 with a view to understanding attack trends and how organizations can better defend themselves.
·intel471.com·
Vulnerabilities Year-in-Review: 2023