As most ransomware STOP/DJVU encrypts files to make them inaccessible. After you pay the ransom (in bitcoins), the attackers send the tools and information needed to decrypt your files and make them accessible again. The encryption is very hard to ‘break’ but ransomware researcher every now and then have success creating decryption software. Some time… Read More »
Sony has issued a product advisory warning for nine of its SD memory cards, across three different product lines, that might damage your data. The cards, listed below, are at risk of corrupting your files when recording video, according to Sony: SF-M Series SF-M64 SF-M128 SF-M256 (Applicable cards can be identified by the presence of… Read More »
Case study, Story goes like: Accidentally deleted some pictures. Recovered them but they’re corrupted. Anyway to fix it? “I used Recuva to recover a good chunk of my pictures that were deleted but it seems that even though the file was recovered I can’t view its contents? Any program that helps with this? They were… Read More »
I am working on a small repair tool that allows you to repair MP3 and WAV files that are affected by STOP/DJVU ransomware. To test it I need files encrypted by this ransomware. To repair WAV files the tool requires a reference file: A file recorded with the same device or same software as the… Read More »
Original question: Help, I deleted my entire DCIM folder from mobile phone (Samsung) Micro SD Card. Can I recover my photos? A typical answer to this question in many forums and communities is, pull the SD Card from the phone and run PhotoRec. This is indeed an option, but I’m not sure if it’s the… Read More »
2.8.101 # Adds MCU clone tool To repair a JPEG you typically need to remove corrupt data which affects alignment of all data following corruption. To re-align you then insert stuff bytes (zeros) which leave a grey horizontal line. In this video I show how I use MCUs directly above the grey line to replace… Read More »
Recovering your precious photos from a SD card can be challenging enough after accidental file deletion or formatting. Recovering data from an unstable SD Card may prove to even more difficult. Recovering data from an unstable SD Card Many file, photo and data recovery tools available focus on file recovery. Their efforts focus on discovery… Read More »
It turns out, RAW Nikon files (NEF) are easier to ‘repair’ even than RAW Canon files. I will expand this post this week, and add a video, but full resolution JPEGs can be extracted from corrupt NEF files affected by STOP DJVU without the trickery required to repair Canon CR2 files. It appears the full… Read More »
Leapp refurbished iPhone 8 = als nieuw (niet!) De hel genaamd Leapp.nl .. Tsja, het lijkt een sympathiek idee. Een 2e hands iPhone, echter helemaal nagekeken en met garantie. Ik heb zelf niets met iPhone or Apple, maar het is een mode-ding onder tieners, dus dochterlief wil er een. Een refurbished iPhone lijkt de ideale… Read More »
Restart markers make the difference This YouTube channel by my friend and colleague Nguyễn Vũ Hà has many great examples of JPEG-Repair being used to repair STOP/DJVU ransomware affected files. This video in particular is a great showcase on how JPEG restart markers prevent corruption propagating through the JPEG image stream. As you can see… Read More »