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Cybercriminals behind a campaign dubbed DEAD#VAX are taking phishing one step further by delivering malware inside virtual hard disks that pretend to be ordinary PDF documents. Open the wrong “invoice” or “purchase order” and you won’t see a document at all. Instead, Windows mounts a virtual drive that quietly installs AsyncRAT, a backdoor Trojan that allows attackers to remotely monitor and control your computer.
It’s a remote access tool, which means attackers gain remote hands‑on‑keyboard control, while traditional file‑based defenses see almost nothing suspicious on disk.
From a high-level view, the infection chain is long, but every step looks just legitimate enough on its own to slip past casual checks.
Victims receive phishing emails that look like routine business messages, often referencing purchase orders or invoices and sometimes impersonating real companies. The email doesn’t attach a document directly. Instead, it links to a file hosted on IPFS (InterPlanetary File System), a decentralized storage network increasingly abused in phishing campaigns because content is harder to take down and can be accessed through normal web gateways.
The linked file is named as a PDF and has the PDF icon, but is actually a virtual hard disk (VHD) file. When the user double‑clicks it, Windows mounts it as a new drive (for example, drive E:) instead of opening a document viewer. Mounting VHDs is perfectly legitimate Windows behavior, which makes this step less likely to ring alarm bells.
Inside the mounted drive is what appears to be the expected document, but it’s actually a Windows Script File (WSF). When the user opens it, Windows executes the code in the file instead of displaying a PDF.
After some checks to avoid analysis and detection, the script injects the payload—AsyncRAT shellcode—into trusted, Microsoft‑signed processes such as RuntimeBroker.exe, OneDrive.exe, taskhostw.exe, or sihost.exe. The malware never writes an actual executable file to disk. It lives and runs entirely in memory inside these legitimate processes, making detection and eventually at a later stage, forensics much harder. It also avoids sudden spikes in activity or memory usage that could draw attention.
For an individual user, falling for this phishing email can result in:
Because detection can be hard, it is crucial that users apply certain checks:
Logininvoice.pdf.vhd the user would only see invoice.pdf. To find out how to do this, see below.To show file extensions in Windows 10 and 11:
Alternatively, search for File Explorer Options to uncheck Hide extensions for known file types.
For older versions of Windows, refer to this article.
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VS Code-integrated configuration files are automatically executed in Codespaces when the user opens a repository or pull request.
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This latest infusion, led by SYN Ventures, brings the company’s total funding to $16.9 million.
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Italy has foiled a series of cyberattacks targeting some of its foreign ministry offices, including one in Washington.
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The malware is known for dropping ransomware and other payloads, and for abusing infected machines to proxy traffic.
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Hackers associated with the Chinese government used a Trojaned version of Notepad++ to deliver malware to selected users.
Notepad++ said that officials with the unnamed provider hosting the update infrastructure consulted with incident responders and found that it remained compromised until September 2. Even then, the attackers maintained credentials to the internal services until December 2, a capability that allowed them to continue redirecting selected update traffic to malicious servers. The threat actor “specifically targeted Notepad++ domain with the goal of exploiting insufficient update verification controls that existed in older versions of Notepad++.” Event logs indicate that the hackers tried to re-exploit one of the weaknesses after it was fixed but that the attempt failed.
Make sure you’re running at least version 8.9.1.
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Mountain View, California, pulled the plug on its entire license plate reader camera network this week. It discovered that Flock Safety, which ran the system, had been sharing city data with hundreds of law enforcement agencies, including federal ones, without permission.
Flock Safety runs an automated license plate recognition (ALPR) system that uses AI to identify vehicles’ number plates on the road. Mountain View Police Department (MVPD) policy chief Mike Canfield ordered all 30 of the city’s Flock cameras disabled on February 3.
Two incidents of unauthorized sharing came to light. The first was a “national lookup” setting that was toggled on for one camera at the intersection of the city’s Charleston and San Antonio roads. Flock allegedly switched it on without telling the city.
That setting could violate California’s 2015 statute SB 34, which bars state and local agencies from sharing license plate reader data with out-of-state or federal entities. The law states:
“A public agency shall not sell, share, or transfer ALPR information, except to another public agency, and only as otherwise permitted by law.”
The statute defines a public agency as the state, or any city or county within it, covering state and local law enforcement agencies.
Last October, the state Attorney General sued the Californian city of El Cajon for knowingly violating that law by sharing license place data with agencies in more than two dozen states.
However, MVPD said that Flock kept no records from the national lookup period, so nobody can determine what information actually left the system.
Mountain View says it never chose to share, which makes the violation different in kind. For the people whose plates were scanned, the distinction is academic.
A separate “statewide lookup” feature had also been active on 29 of the city’s 30 cameras since the initial installation, running for 17 straight months until Mountain View found and disabled it on January 5. Through that tool, more than 250 agencies that had never signed any data agreement with Mountain View ran an estimated 600,000 searches over a single year, according to local paper the Mountain View Voice, which first uncovered the issue after filing a public records request.
Over the past year, more than two dozen municipalities across the country have ended contracts with Flock, many citing the same worry that data collected for local crime-fighting could be used for federal immigration enforcement. Santa Cruz became the first in California to terminate its contract last month.
Flock’s own CEO reportedly acknowledged last August that the company had been running previously undisclosed pilot programs with Customs and Border Protection and Homeland Security Investigations.
The cameras will remain offline until the City Council meets on February 24. Canfield says that he still supports license plate reader technology, just not this vendor.
This goes beyond one city’s vendor dispute. If strict internal policies weren’t enough to prevent unauthorized sharing, it raises a harder question: whether policy alone is an adequate safeguard when surveillance systems are operated by third parties.
We don’t just report on data privacy—we help you remove your personal information
Cybersecurity risks should never spread beyond a headline. With Malwarebytes Personal Data Remover, you can scan to find out which sites are exposing your personal information, and then delete that sensitive data from the internet.
The vulnerability could allow attackers to execute arbitrary commands and steal credentials and other secrets.
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Interview Sovereignty remains a hot topic in the tech industry, but interpretations of what it actually means – and how much it matters – vary widely between organizations and sectors. While public bodies are often driven by regulation and national policy, the private sector tends to take a more pragmatic, cost-focused view.…
Palo Alto Networks has not attributed the APT activity to any specific country, but evidence points to China.
The post Cyberspy Group Hacked Governments and Critical Infrastructure in 37 Countries appeared first on SecurityWeek.
The security defects can lead to DoS conditions, arbitrary command execution, and privilege escalation.
The post Cisco, F5 Patch High-Severity Vulnerabilities appeared first on SecurityWeek.
Stan Ghouls (also known as Bloody Wolf) is an cybercriminal group that has been launching targeted attacks against organizations in Russia, Kyrgyzstan, Kazakhstan, and Uzbekistan since at least 2023. These attackers primarily have their sights set on the manufacturing, finance, and IT sectors. Their campaigns are meticulously prepared and tailored to specific victims, featuring a signature toolkit of custom Java-based malware loaders and a sprawling infrastructure with resources dedicated to specific campaigns.
We continuously track Stan Ghouls’ activity, providing our clients with intel on their tactics, techniques, procedures, and latest campaigns. In this post, we share the results of our most recent deep dive into a campaign targeting Uzbekistan, where we identified roughly 50 victims. About 10 devices in Russia were also hit, with a handful of others scattered across Kazakhstan, Turkey, Serbia, and Belarus (though those last three were likely just collateral damage).
During our investigation, we spotted shifts in the attackers’ infrastructure – specifically, a batch of new domains. We also uncovered evidence suggesting that Stan Ghouls may have added IoT-focused malware to their arsenal.
Stan Ghouls relies on phishing emails packed with malicious PDF attachments as their initial entry point. Historically, the group’s weapon of choice was the remote access Trojan (RAT) STRRAT, also known as Strigoi Master. Last year, however, they switched strategies, opting to misuse legitimate software, NetSupport, to maintain control over infected machines.
Given Stan Ghouls’ targeting of financial institutions, we believe their primary motive is financial gain. That said, their heavy use of RATs may also hint at cyberespionage.
Like any other organized cybercrime groups, Stan Ghouls frequently refreshes its infrastructure. To track their campaigns effectively, you have to continuously analyze their activity.
As we’ve mentioned, Stan Ghouls’ primary – and currently only – delivery method is spear phishing. Specifically, they favor emails loaded with malicious PDF attachments. This has been backed up by research from several of our industry peers (1, 2, 3). Interestingly, the attackers prefer to use local languages rather than opting for international mainstays like Russian or English. Below is an example of an email spotted in a previous campaign targeting users in Kyrgyzstan.
Example of a phishing email from a previous Stan Ghouls campaign
The email is written in Kyrgyz and translates to: “The service has contacted you. Materials for review are attached. Sincerely”.
The attachment was a malicious PDF file titled “Постановление_Районный_суд_Кчрм_3566_28-01-25_OL4_scan.pdf” (the title, written in Russian, posed it as an order of district court).
During the most recent campaign, which primarily targeted victims in Uzbekistan, the attackers deployed spear-phishing emails written in Uzbek:
Example of a spear-phishing email from the latest campaign
The email text can be translated as follows:
[redacted] AKMALZHON IBROHIMOVICH You will receive a court notice. Application for retrial. The case is under review by the district court. Judicial Service. Mustaqillik Street, 147 Uraboshi Village, Quva District.
The attachment, named E-SUD_705306256_ljro_varaqasi.pdf (MD5: 7556e2f5a8f7d7531f28508f718cb83d), is a standard one-page decoy PDF:
The embedded decoy document
Notice that the attackers claim that the “case materials” (which are actually the malicious loader) can only be opened using the Java Runtime Environment.
They even helpfully provide a link for the victim to download and install it from the official website.
The decoy document contains identical text in both Russian and Uzbek, featuring two links that point to the malicious loader:
Both links lead to the exact same JAR file (MD5: 95db93454ec1d581311c832122d21b20).
It’s worth noting that these attackers are constantly updating their infrastructure, registering new domains for every new campaign. In the relatively short history of this threat, we’ve already mapped out over 35 domains tied to Stan Ghouls.
The malicious loader handles three main tasks:
Fake error message
The limitCheck procedure for verifying the number of RAT download attempts
The performanceResourceUpdate procedure for downloading the remote management utility
The loader fetches the following files, which make up the components of the NetSupport RAT: PCICHEK.DLL, client32.exe, advpack.dll, msvcr100.dll, remcmdstub.exe, ir50_qcx.dll, client32.ini, AudioCapture.dll, kbdlk41a.dll, KBDSF.DLL, tcctl32.dll, HTCTL32.DLL, kbdibm02.DLL, kbd101c.DLL, kbd106n.dll, ir50_32.dll, nskbfltr.inf, NSM.lic, pcicapi.dll, PCICL32.dll, qwave.dll. This list is hardcoded in the malicious loader’s body. To ensure the download was successful, it checks for the presence of the client32.exe executable. If the file is found, the loader generates a NetSupport launch script (run.bat), drops it into the folder with the other files, and executes it:
The createBatAndRun procedure for creating and executing the run.bat file, which then launches the NetSupport RAT
The loader also ensures NetSupport persistence by adding it to startup using the following three methods:
%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup):
The generateAutorunScript procedure for creating the batch file and placing it in the Startup folder
HKCU\Software\Microsoft\Windows\CurrentVersion\Run\malicious_key_name).
The registryStartupAdd procedure for adding the RAT launch script to the registry autorun key
schtasks Create /TN "[malicious_task_name]" /TR "[path_to_run.bat]" /SC ONLOGON /RL LIMITED /F /RU "[%USERNAME%]"
The installStartupTask procedure for creating a scheduled task to launch the NetSupport RAT (via run.bat)
Once the NetSupport RAT is downloaded, installed, and executed, the attackers gain total control over the victim’s machine. While we don’t have enough telemetry to say with 100% certainty what they do once they’re in, the heavy focus on finance-related organizations suggests that the group is primarily after its victims’ money. That said, we can’t rule out cyberespionage either.
Previous Stan Ghouls attacks targeting organizations in Kyrgyzstan, as documented by Group-IB researchers, featured a NetSupport RAT configuration file client32.ini with the MD5 hash cb9c28a4c6657ae5ea810020cb214ff0. While reports mention the Kyrgyzstan campaign kicked off in June 2025, Kaspersky solutions first flagged this exact config file on May 16, 2025. At that time, it contained the following NetSupport RAT command-and-control server info:
... [HTTP] CMPI=60 GatewayAddress=hgame33[.]com:443 GSK=FN:L?ADAFI:F?BCPGD;N>IAO9J>J@N Port=443 SecondaryGateway=ravinads[.]com:443 SecondaryPort=443
At the time of our January 2026 investigation, our telemetry showed that the domain specified in that config, hgame33[.]com, was also hosting the following files:
All of these files belong to the infamous IoT malware named Mirai. Since they are sitting on a server tied to the Stan Ghouls’ campaign targeting Kyrgyzstan, we can hypothesize – with a low degree of confidence – that the group has expanded its toolkit to include IoT-based threats. However, it’s also possible it simply shared its infrastructure with other threat actors who were the ones actually wielding Mirai. This theory is backed up by the fact that the domain’s registration info was last updated on July 4, 2025, at 11:46:11 – well after Stan Ghouls’ activity in May and June.
We attribute this campaign to the Stan Ghouls (Bloody Wolf) group with a high degree of confidence, based on the following similarities to the attackers’ previous campaigns:
Code snippet from sample 1acd4592a4eb0c66642cc7b07213e9c9584c6140210779fbc9ebb76a90738d5e, the loader from the Group-IB report
Code snippet from sample 95db93454ec1d581311c832122d21b20, the NetSupport loader described here
Decoy document 5d840b741d1061d51d9786f8009c37038c395c129bee608616740141f3b202bb from the campaign reported by Group-IB
Decoy document 106911ba54f7e5e609c702504e69c89a used in the campaign described here
We identified approximately 50 victims of this campaign in Uzbekistan, alongside 10 in Russia and a handful of others in Kazakhstan, Turkey, Serbia, and Belarus (we suspect the infections in these last three countries were accidental). Nearly all phishing emails and decoy files in this campaign were written in Uzbek, which aligns with the group’s track record of leveraging the native languages of their target countries.
Most of the victims are tied to industrial manufacturing, finance, and IT. Furthermore, we observed infection attempts on devices within government organizations, logistics companies, medical facilities, and educational institutions.
It is worth noting that over 60 victims is quite a high headcount for a sophisticated campaign. This suggests the attackers have enough resources to maintain manual remote control over dozens of infected devices simultaneously.
In this post, we’ve broken down the recent campaign by the Stan Ghouls group. The attackers set their sights on organizations in industrial manufacturing, IT, and finance, primarily located in Uzbekistan. However, the ripple effect also reached Russia, Kazakhstan, and a few, likely accidental, victims elsewhere.
With over 60 targets hit, this is a remarkably high volume for a sophisticated targeted campaign. It points to the significant resources these actors are willing to pour into their operations. Interestingly, despite this, the group sticks to a familiar toolkit including the legitimate NetSupport remote management utility and their signature custom Java-based loader. The only thing they seem to keep updating is their infrastructure. For this specific campaign, they employed two new domains to house their malicious loader and one new domain dedicated to hosting NetSupport RAT files.
One curious discovery was the presence of Mirai files on a domain linked to the group’s previous campaigns. This might suggest Stan Ghouls are branching out into IoT malware, though it’s still too early to call it with total certainty.
We’re keeping a close watch on Stan Ghouls and will continue to keep our customers in the loop regarding the group’s latest moves. Kaspersky products provide robust protection against this threat at every stage of the attack lifecycle.
* Additional IoCs and a YARA rule for detecting Stan Ghouls activity are available to customers of our Threat Intelligence Reporting service. For more details, contact us at crimewareintel@kaspersky.com.
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mysoliq-uz[.]com
my-xb[.]com
xarid-uz[.]com
ach-uz[.]com
soliq-uz[.]com
minjust-kg[.]com
esf-kg[.]com
taxnotice-kg[.]com
notice-kg[.]com
proauditkg[.]com
kgauditcheck[.]com
servicedoc-kg[.]com
auditnotice-kg[.]com
tax-kg[.]com
rouming-uz[.]com
audit-kg[.]com
kyrgyzstanreview[.]com
salyk-notofocations[.]com
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