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A China-linked threat actor known as Lotus Blossom has been attributed with medium confidence to the recently discovered compromise of the infrastructure hosting Notepad++. The attack enabled the state-sponsored hacking group to deliver a previously undocumented backdoor codenamed Chrysalis to users of the open-source editor, according to new findings from Rapid7. The development comes shortly after Notepad++ maintainer Don Ho said that a compromise at the hosting provider level allowed threat actors to hijack update traffic starting June 2025 and selectively redirect such requests from certain users to malicious servers to serve a tampered update by exploiting insufficient update verification controls that existed in older versions of the utility. The weakness was plugged in December 2025 with the release of version 8.8.9. It has since emerged that the hosting provider for the software was breached to perform targeted traffic redirections until December 2, 2025, when the atta...

Threat activity this week shows one consistent signal — attackers are leaning harder on what already works. Instead of flashy new exploits, many operations are built around quiet misuse of trusted tools, familiar workflows, and overlooked exposures that sit in plain sight. Another shift is how access is gained versus how it’s used. Initial entry points are getting simpler, while post-compromise activity is becoming more deliberate, structured, and persistent. The objective is less about disruption and more about staying embedded long enough to extract value. There’s also growing overlap between cybercrime, espionage tradecraft, and opportunistic intrusion. Techniques are bleeding across groups, making attribution harder and defense baselines less reliable. Below is this week’s ThreatsDay Bulletin — a tight scan of the signals that matter, distilled into quick reads. Each item adds context to where threat pressure is building next. Notepad RCE via Markdown L...

This week’s cyber stories show how fast the online world can turn risky. Hackers are sneaking malware into movie downloads, browser add-ons, and even software updates people trust. Tech giants and governments are racing to plug new holes while arguing over privacy and control. And researchers keep uncovering just how much of our digital life is still wide open. The new Threatsday Bulletin brings it all together—big hacks, quiet exploits, bold arrests, and smart discoveries that explain where cyber threats are headed next. It’s your quick, plain-spoken look at the week’s biggest security moves before they become tomorrow’s headlines. Maritime IoT under siege Mirai-Based Broadside Botnet Exploits TBK DVR Flaw A new Mirai botnet variant dubbed Broadside has been exploiting a critical-severity vulnerability in TBK DVR ( CVE-2024-3721 ) in attacks targeting the maritime logistics sector. "Unlike previous Mirai variants, Broadside e...

Self-extracting archive (SFX) as Creative Virus Handler Yesterday I Found and interesting article about " Self-extracting archive (SFX) " on Unremote.org by DarkCoderSc. SFX is a little application that contains compressed files. Creating a customized WinRAR SFX archives is a very easy task, but not all people know how to do it.  It is therefore exactly the same as a .ZIP or .RAR archive. The only difference is that, when you execute it, will automatically extract the files. However, if you add some parameters, you can execute them after extraction or execute a shell command before extraction. So this feature can be used as good virus handler. Let's See how? DarkCoderSc shared his experience with us using a Video Demonstration as shown Below. Start up the WinRAR application; click ‘Browse for folder’ under the ‘File’ menu and browse to the location of the file. With the file highlighted, clicking on the ‘Add’ button will kickoff the archiving process and sele...

A North Korea-linked cyber-espionage group has been observed leveraging job-themed phishing lures to target prospective victims in energy and aerospace verticals and infect them with a previously undocumented backdoor dubbed MISTPEN. The activity cluster is being tracked by Google-owned Mandiant under the moniker UNC2970 , which it said overlaps with a threat group known as TEMP.Hermit , which is also broadly called Lazarus Group or Diamond Sleet (formerly Zinc). The threat actor has a history of targeting government, defense, telecommunications, and financial institutions worldwide since at least 2013 to collect strategic intelligence that furthers North Korean interests. It's affiliated with the Reconnaissance General Bureau (RGB). The threat intelligence firm said it has observed UNC2970 singling out various entities located in the U.S., the U.K., the Netherlands, Cyprus, Sweden, Germany, Singapore, Hong Kong, and Australia. "UNC2970 targets victims under the guise o...

The Lazarus Group, an infamous threat actor linked to the Democratic People's Republic of Korea (DPRK), has been observed leveraging a "complex infection chain" targeting at least two employees belonging to an unnamed nuclear-related organization within the span of one month in January 2024. The attacks, which culminated in the deployment of a new modular backdoor referred to as CookiePlus , are part of a long-running cyber espionage campaign known as Operation Dream Job, which is also tracked as NukeSped by cybersecurity company Kaspersky. It's known to be active since at least 2020, when it was exposed by ClearSky. These activities often involve targeting developers and employees in various companies, including defense, aerospace, cryptocurrency, and other global sectors, with lucrative job opportunities that ultimately lead to the deployment of malware on their machines. "Lazarus is interested in carrying out supply chain attacks as part of the DeathNote...

SideWinder, a prolific nation-state actor mainly known for targeting Pakistan military entities, compromised the official website of the National Electric Power Regulatory Authority (NEPRA) to deliver a tailored malware called  WarHawk . "The newly discovered WarHawk backdoor contains various malicious modules that deliver Cobalt Strike, incorporating new TTPs such as  KernelCallBackTable injection  and Pakistan Standard Time zone check in order to ensure a victorious campaign," Zscaler ThreatLabz  said . The threat group, also called APT-C-17, Rattlesnake, and Razor Tiger, is  suspected  to be an Indian state-sponsored actor, although a report from Kaspersky earlier this May acknowledged previous indicators that led to the attribution have since disappeared, making it challenging it to link the threat cluster to a specific nation. More than 1,000 attacks are said to have been  launched by the group  since April 2020, an indication of SideWin...

The advanced persistent threat (APT) group known as  StrongPity  has targeted Android users with a trojanized version of the Telegram app through a fake website that impersonates a video chat service called Shagle . "A copycat website, mimicking the Shagle service, is used to distribute StrongPity's mobile backdoor app," ESET malware researcher Lukáš Štefanko  said  in a technical report. "The app is a modified version of the open source Telegram app, repackaged with StrongPity backdoor code." StrongPity , also known by the names APT-C-41 and Promethium, is a cyberespionage group active since at least 2012, with a majority of its operations focused on Syria and Turkey. The existence of the group was first publicly reported by Kaspersky in October 2016. The threat actor's  campaigns  have since expanded to encompass more targets across Africa, Asia, Europe, and North America, with the intrusions leveraging watering hole attacks and phishing messages to a...

This week, the shadows moved faster than the patches. While most teams were still triaging last month’s alerts, attackers had already turned control panels into kill switches, kernels into open doors, and open-source pipelines into silent delivery systems. The game has shifted from breach to occupation. They’re living inside SaaS sessions, pushing code with trusted commits, and scaling operations like legitimate businesses — except their product is chaos. And the underground is getting uncomfortably professional. Here’s the full weekly cybersecurity recap: ⚡ Threat of the Week cPanel Flaw Comes Under Attack —A critical flaw in cPanel and WebHost Manager (WHM) has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-41940, could result in an authentication bypass and allow remote attackers to gain elevated control of the control panel. In some cases , the attacks have led to a complete wipe of entire websites and backups. Other attacks have deployed ...

Most of this week’s threats didn’t rely on new tricks. They relied on familiar systems behaving exactly as designed, just in the wrong hands. Ordinary files, routine services, and trusted workflows were enough to open doors without forcing them. What stands out is how little friction attackers now need. Some activity focused on quiet reach and coverage, others on timing and reuse. The emphasis wasn’t speed or spectacle, but control gained through scale, patience, and misplaced trust. The stories below trace where that trust bent, not how it broke. Each item is a small signal of a larger shift, best seen when viewed together. Spear-phishing delivers custom backdoor Operation Nomad Leopard Targets Afghanistan Government entities in Afghanistan have been at the receiving end of a spear-phishing campaign dubbed Operation Nomad Leopard that employs bogus administrative documents as decoys to distribute a backdoor named FALSECUB by means o...