MagicWeb: NOBELIUM’s post-compromise trick to authenticate as anyone
Microsoft security researchers have discovered a post-compromise capability we’re calling MagicWeb, which is used by a threat actor we track as NOBELIUM to maintain persistent access to compromised environments.
Vulnerability in Linux containers – investigation and mitigation
Operating system access controls, that constrain which programs can open which files, have existed for almost as long as computers themselves. Access controls are still widely used and are more flexible and efficient when compared to cryptographically protecting files. Despite the long history, ther
Break me out of sandbox in old pipe - CVE-2022-22715 Windows Dirty Pipe
In February 2022, Microsoft patched the vulnerability I used in TianfuCup 2021 for escaping Adobe Reader sandbox, assigned CVE-2022-22715. The vulnerability existed in Named Pipe File System nearly 10 years since the AppContainer was born. We called it "Windows Dirty Pipe". In this article, I will share the root cause and exploitation of Windows Dirty Pipe. So let's start our journey.
THREAT ANALYSIS REPORT: Bumblebee Loader – The High Road to Enterprise Domain Control
Cybereason GSOC observed distribution of the Bumblebee Loader and post-exploitation activities including privilege escalation, reconnaissance and credential theft. Bumblebee operators use the Cobalt Strike framework throughout the attack and abuse credentials for privilege escalation to access Active Directory, as well as abusing a domain administrator account to move laterally, create local user accounts and exfiltrate data...
Fake DDoS Pages On WordPress Sites Lead to Drive-By-Downloads
We reveal how hackers have begun leveraging fake DDoS protection pages to trick users into downloading remote access trojans (RATs) onto their computers.
Lloyd’s to Exclude Catastrophic Nation-Backed Cyberattacks From Insurance Coverage
Lloyd’s of London will require its insurer groups globally to exclude catastrophic state-backed hacks from stand-alone cyber insurance policies starting next year.
On May 10, 2022, Zimbra released versions 9.0.0 patch 24 and 8.8.15 patch 31 to address multiple vulnerabilities in Zimbra Collaboration Suite, including CVE-2…
Observing the ongoing conflict between Russia and Ukraine, we can clearly see that cyberattacks leveraging malware are an important part of modern hybrid war strategy.
A new wave of phishing is currently circulating (a related story from derstandard.at newspaper can be found here). Documents are said to have been sent to you from a scanner, which you can allegedly download, as can be seen in the following image
Making Sense of the Killnet, Russia’s Favorite Hacktivists
Killnet makes three announcements The past month seemed to be a turning point for the pro-Russian hacktivist group “Killnet”—and it was very eager to tell the world about it. First, on July 27, “Killmilk”—the founder and the head of the group who led its transformation from a DDoS-for-hire outlet i
The Microsoft Threat Intelligence Center (MSTIC) has observed and taken actions to disrupt campaigns launched by SEABORGIUM in campaigns involve persistent phishing and credential theft campaigns leading to intrusions and data theft.
Operation In(ter)ception: Aerospace and military companies in the crosshairs of cyberspies | WeLiveSecurity
ESET research uncovers attacks against several high-profile aerospace and military companies in Europe and the Middle East, with several hints suggesting a possible link to the Lazarus group.
North Korean hackers use signed macOS malware to target IT job seekers
North Korean hackers from the Lazarus group have been using a signed malicious executable for macOS to impersonate Coinbase and lure in employees in the financial technology sector.
An inside view of domain anonymization as-a-service
One, if not the main, challenge with producing good intelligence is to have access to the right information at the right moment. The right telemetry from the right angle helps you to detect and dig…
DigitalOcean says customer email addresses were exposed after latest Mailchimp breach – TechCrunch
Cloud giant DigitalOcean says that some customers’ email addresses were exposed because of a recent “security incident” at email marketing company Mailchimp. In a scant blog post dated August 12, just two days after the company’s co-founder and long-time CEO Ben Chestnut stepped down, Mailchimp said a recent but undated attack saw threat actors targeting […]
Impact to DigitalOcean customers resulting from Mailchimp security incident
The security of DigitalOcean customers and their data is a responsibility we approach with utmost dedication. When our customers' security is threatened we respond swiftly, communicate with transpa...
Increased targeting of developing and middle-income countries by ransomware actors presents a challenge to political resilience, economic development and global cyber security.
Zoom’s latest update on Mac includes a fix for a dangerous security flaw
Zoom has issued a patch for a bug on macOS that could allow a hacker to take control of a user’s operating system (via MacRumors). In an update on its security bulletin, Zoom acknowledges the issue (CVE-2022-28756) and says a fix is included in version 5.11.5 of the app on Mac, which you can (and should) download now.
Process injection: breaking all macOS security layers with a single vulnerability ·
In macOS 12.0.1 Monterey, Apple fixed CVE-2021-30873. This was a process injection vulnerability affecting (essentially) all macOS AppKit-based applications. We reported this vulnerability to Apple, along with methods to use this vulnerability to escape the sandbox, elevate privileges to root and bypass the filesystem restrictions of SIP.
Cisco confirms May attack by Yanluowang ransomware group
Cisco confirmed on Wednesday that it was attack by the Yanluowang ransomware group in May, but said the hackers were not able to steal sensitive data or impact the company’s operations. In a statement to The Record, Cisco said the incident occured on their corporate network in late May and that they “immediately took action to contain and eradicate the bad actors.”
The mechanics of a sophisticated phishing scam and how we stopped it
Yesterday, August 8, 2022, Twilio shared that they’d been compromised by a targeted phishing attack. Around the same time as Twilio was attacked, we saw an attack with very similar characteristics also targeting Cloudflare’s employees. While individual employees did fall for the phishing messages, we were able to thwart the attack through our own use of Cloudflare One products, and physical security keys issued to every employee that are required to access all our applications.
Lockdown Mode is a new Apple feature you should hope you’ll never need to use. But for those who do, like journalists, politicians, lawyers and human rights defenders, it’s a last line of defense against nation-state spyware designed to punch through an iPhone’s protections. The new security feature was announced earlier this year as an […]
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