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Save the file to the cloud If you need to send a file that's blocked by Outlook, the simplest way to send your file is to upload it to OneDrive or a secure network share server such as SharePoint. Then send a link to the file. If you need to receive a blocked file, ask the sender to upload the file to OneDrive or SharePoint and send you a link. Once you receive the link, you can open the file location and download the file.
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On 11th Feb 2022, we identified a sample uploaded to VirusTotal from Ukraine which resulted in our discovery of a previously undocumented attack-chain. We describe the technical details of this second attack-chain in the blog. By pivoting on the metadata of the files, we were able to discover 7 unique samples and the origins of campaign tracing back to Nov 2020.
The attack chain #1 infection starts with an email which has a malicious RAR archive attachment. The victim downloads and extracts the RAR archive contents which contains a malicious document file that is themed using the ongoing geo-political conflict between Russia and Ukraine.
This low-volume campaign involves RAR archive files distributed through spear phishing emails. These RAR archive files contain a malicious Windows shortcut file (LNK) which downloads the MSI payload from the attacker-controlled server and executes it on the endpoint using MSIEXEC.
So, using Content-Range you could download part of the file from the end (the central directory is the last thing in a ZIP file) and try to identify the central directory in it. If you succeed then you know the file list and offsets, so you can proceed and get those chunks separately and decompress them yourself.
There are several ways for a normal person to be able to download an individual file from a compressed ZIP file, unfortunately they aren't common knowledge. There are some open-source tools and online web services, including:
The following file is available for download from the Microsoft Update Catalog:Download the Windows Installer 3.1 Redistributable (v2) package now.Release Date: May 12, 2005For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
If you are trying to download a file, but Chrome won't allow it, you can temporarily (or permanently) disable the browser's security. Of course, you should be sure the file is safe before you choose to override Chrome's protection.
Are you having the same issue that Windows defender keeps deleting files, such as downloaded videos, documents, or .exe programs? Or is your Windows 10 automatically deleting downloaded files and data without asking for confirmation? Although it sounds senseless, it is true. Windows 10 may keep deleting programs and documents after restart because of the defender or the new storage sense feature in Windows 10. But, you don't have to worry since you can quickly recover deleted files from Windows 10 using a professional EaseUS data recovery tool. After that, you can use the helpful methods demonstrated below to stop Windows from deleting files automatically.
In our observation of the campaigns, we noted that, Earth Preta abused fake Google accounts to distribute the malware via spear-phishing emails, initially stored in an archive file (such as rar/zip/jar) and distributed through Google Drive links. Users are then lured into downloading and triggering the malware to execute, TONEINS, TONESHELL, and PUBLOAD. PUBLOAD has been previously reported, but we add new technical insights in this entry that tie it to TONEINS and TONESHELL, newly discovered malware families used by the group for its campaigns.
The attackers use the stolen documents as decoys to trick the targeted organizations working with Myanmar government offices into downloading and executing the malicious files. The victimology covers a broad range of organizations and verticals worldwide, with a higher concentration in the Asia Pacific region. Apart from the government offices with collaborative work in Myanmar, subsequent victims included the education and research industries, among others. In addition to decoy topics covering ongoing international events concerning specific organizations, the attackers also lure individuals with subject headings pertaining to pornographic materials.
The backdoor supports various functions, including file upload, file download, file execution, and lateral movement. We also noticed that its internal strings are self-explanatory. In fact, this malware is named TONESHELL after the typo found in its command "TOnePipeShell". The following table shows all of its commands:
Usually, we see such download links as the first arrival vectors. The Google Drive direct download link is represented in the format https[:]//drive.google.com/uc?id=gdrive_file_id&export=download. The gdrive_file_id is a unique identifier for this specific file. We can switch to web viewer to check its file contents and its owner by modifying the URL: https[:]//drive.google.com/file/d/gdrive_file_id/view.
With SmartScreen off, you are on your own about which files to download in Edge, but I would urge you to go back and toggle SmartScreen on when you have finished downloading your file. And, of course, only turn it off to download files you know to be safe.
In Windows Defender, you can also change Edge's SmartScreen to merely warn you when you are about to download a file it deems suspicious instead of it outright blocking it. You'll be able to click through the warning and override SmartScreen's concerns and download the file. To do so, open Windows Defender Security Center, click App & browser control and choose Warn for SmartScreen for Microsoft Edge.
Some PC issues are hard to tackle, especially when it comes to corrupted repositories or missing Windows files. If you are having troubles fixing an error, your system may be partially broken. We recommend installing Restoro, a tool that will scan your machine and identify what the fault is.Click here to download and start repairing.
One of the most popular WinZip alternatives is the file compressor WinRAR. The software stands out from the other alternatives due to its ease of use and intuitive processes. The user interface is very clear and simple, which makes the basic functions self-explanatory. WinRAR is suitable for both tech-savvy users and beginners alike, and is not only an excellent alternative to WinZip, but also to the compression solution integrated into Windows.
On Windows: Windows Attachment Manager could have removed the file that you tried to download. To see what files you can download, or why your file was blocked, check your Windows Internet security settings.
Displays the Virus Alert dialog when RTP detects a virus while attempting to download a file via a web browser. The dialog allows you to view recently detected viruses, their locations, and statuses.
A .zip or .rar file is a file that stores and compresses one or more other files. Recently, I tried downloading albums from my Flickr account, but I often received the same error message when opening the .zip file: Unexpceted end of archive. Very frustrating; the message was still there even after redownloading that zip file.
In November of 2021, we described several techniques used by attackers to deliver malware through infected Microsoft Office files. In addition to exploits like CVE-2021-40444, these infected documents frequently abuse VBA (Visual Basic for Applications) to execute their techniques, regardless of the final payload. Attackers also often use extra layers of protection to evade signature-based detections, like constructing PowerShell scripts and WMI namespaces at runtime, as done by Emotet. In addition to code obfuscation, attackers use other techniques to evade detection like non-standard file types in Microsoft Word.
Modern browsers may include additional information about the downloaded object in this ADS, such as the source URL and the ZoneID, which defines the security zone based on where the file was downloaded from.
Attackers will opt to use all available tools and techniques to minimize the chances of detection, like in the case we just analyzed, where the usage of Web Archive files to deliver infected documents minimizes the chances of signature-based detection. Also, by using a cloud service for C2 communication, attackers increase their chances to stay under the radar.
If you are downloading the JDK installer for 64-bit systems for update 9 Minor 1, Security 1, and Patch 1, then the file name jdk-9.minor.security.patch_windows-x64_bin.exe becomes jdk-18.104.22.168_windows-x64_bin.exe.
If you are downloading the JRE installer for 64-bit systems for update 9 Minor 1, Security 1, and Patch 1, then the file name jre-9.minor.security.patch_windows-x64_bin.exe becomes jre-22.214.171.124_windows-x64_bin.exe.
The following table lists example installation scenarios and the commands required to perform them. The notation jdk stands for the downloaded installer file base name, such as jdk-9_windows-x64_bin.exe.
With Java Web Start, you can download and run applications, such as a complete spreadsheet program or an internet chat client, without going through complicated installation procedures. With Java Web Start, you run applications simply by clicking a web page link. If the application is not present on your computer, Java Web Start automatically downloads all necessary files. It then caches the files on your computer so that the application is always ready to be run anytime that you want - either from an icon on your desktop or from the browser link. No matter which method you use to run the application, the most current, available version of the application is always presented to you. 041b061a72