IndySlot 0 Posted January 11 Report Share Posted January 11 Hi, My files got encrypted a couple minutes/hours ago and I cannot decrypt them with the decrypter. Based on my files and information the ransomware is "STOP (Djvu)". Is there anyway I can still decrypt these files? The files end with .coos Indy 1 Quote Link to post Share on other sites
Amigo-A 142 Posted January 11 Report Share Posted January 11 You need attach a ransom note file to message. Quote Link to post Share on other sites
IndySlot 0 Posted January 11 Author Report Share Posted January 11 Here a random file and the readme.txt Is there a way decryption will become available? If not, is there a tool that can help me find all the files that have not been affected? _readme.txt icon.png.coos 1 Quote Link to post Share on other sites
Amigo-A 142 Posted January 11 Report Share Posted January 11 Yes, this is a new variant STOP Ransomware. Soon, a support specialist will explain the situation with the decryptor to you. You can also read help on this case. Quote Link to post Share on other sites
IndySlot 0 Posted January 11 Author Report Share Posted January 11 I see in the decryptor that it appears to have a online ID, in the post you send me it says that decryption is impossible with an online id. Is is a good idea for me to leave my computer (desktop) alone for a while or are my important files basically not coming back ever again? Thanks a lot for the quick reaction by the way! You're amazing! Quote Link to post Share on other sites
Amigo-A 142 Posted January 11 Report Share Posted January 11 This ransomware may still be active on your system. It is necessary to check the PC and save the found malicious files in quarantine. Thanks! You read that right. For a long time, this Help remains valid. Unfortunately, if the ransomware was performing online-encryption, then most likely the files will not be able to decrypt. But each case requires study. Extortionists can change something at any time. Quote Link to post Share on other sites
Amigo-A 142 Posted January 11 Report Share Posted January 11 You can use this tool to check your PC. https://www.emsisoft.com/en/home/antimalware/ Wait for a response from a support technician to help you with an active PC infection. Quote Link to post Share on other sites
IndySlot 0 Posted January 11 Author Report Share Posted January 11 I scanned my computer on malware and put the malware in quarantine. Should I just wait now, or do I have to take further action? I'm sorry, first time I have ransomware on my computer. 😄 And how do stay up to date on the new versions on this ransomware? Quote Link to post Share on other sites
Amigo-A 142 Posted January 11 Report Share Posted January 11 You need to wait. A support specialist will tell you how best to do it. We have a time difference of 10-11 hours. This new variant of "STOP ransomware" and needs to research. Quote Link to post Share on other sites
Amigo-A 142 Posted January 11 Report Share Posted January 11 double post Quote Link to post Share on other sites
GT500 886 Posted January 12 Report Share Posted January 12 10 hours ago, IndySlot said: Should I just wait now, or do I have to take further action? Our recommendation is to save a backup of your encrypted files and keep it in a safe place in case decryption is possible at some point in the future. We also recommend keeping an eye on BleepingComputer's newsfeed, as they will usually report on new developments with ransomware decrypters:https://www.bleepingcomputer.com/ If you have an RSS feed reader, then they also have an RSS feed so that you don't have to manually check for news:https://www.bleepingcomputer.com/feed/ Quote Link to post Share on other sites
Nanda F 0 Posted January 12 Report Share Posted January 12 My ID is online ID, so there is impossible to recover my data ? Quote Link to post Share on other sites
GT500 886 Posted January 13 Report Share Posted January 13 11 hours ago, Nanda F said: My ID is online ID, so there is impossible to recover my data ? Correct. There is more information at the following link:https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/ Quote Link to post Share on other sites
Papai 0 Posted January 15 Report Share Posted January 15 In my case, an online ID. They tried to sign into my social networking accounts too. Lost all crucial data. Quote Link to post Share on other sites
EhabAdel 0 Posted January 15 Report Share Posted January 15 _readme.txtsir please my pc infected by .coos ransomware virus with online key: zOwuuF28V80ZDzE4dI6E1siTfpgrHOM0QmT2yZO2 i restore my windows and scanned it with many malware software like malwarebytre , spy hunter , Emsisoft Internet Security and GridinSoft Anti-Malware and im looking for decrypt my data it is very importatnt thing all of my work and my data _readme.txt master.prproj.coos Quote Link to post Share on other sites
GT500 886 Posted January 16 Report Share Posted January 16 8 hours ago, Papai said: In my case, an online ID. They tried to sign into my social networking accounts too. Lost all crucial data. This is a newer variant of STOP/Djvu. If you have an offline ID, then once we can find the decryption key for this variant and add it to our database you should be able to recover your files. However, if you have an online ID (which is more likely) then it will not be possible to recover your files. There is more information at the following link:https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/ The information at the link includes this, but the ransomware also downloads and runs the Azorult trojan, which steals your passwords. Quote Link to post Share on other sites
GT500 886 Posted January 16 Report Share Posted January 16 7 hours ago, EhabAdel said: sir please my pc infected by .coos ransomware virus with online key: zOwuuF28V80ZDzE4dI6E1siTfpgrHOM0QmT2yZO2 This is a newer variant of STOP/Djvu, and your ID is an online ID, so there is currently no way to decrypt your files. There is more information at the following link:https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/ 7 hours ago, EhabAdel said: i restore my windows and scanned it with many malware software like malwarebytre , spy hunter , Emsisoft Internet Security and GridinSoft Anti-Malware and im looking for decrypt my data Emsisoft Internet Security is a discontinued product, and hasn't been updated in years. If you really do have it installed, note that it won't be able to detect the STOP/Djvu ransomware, and that it is too old to receive database updates. Here are links to our currently available products which we still maintain: Emsisoft Anti-Malware Home Emsisoft Business Security Emsisoft Enterprise Security Emsisoft Emergency Kit (free for home/personal use) Emsisoft Commandline Scanner Emsisoft Mobile Security (for devices with Google Android 5.0 and newer) Quote Link to post Share on other sites
GT500 886 Posted January 16 Report Share Posted January 16 Someone posted a link to something called "DiskTuna" claiming it can recover files. The post has since been hidden, and I have asked our lab team to look at the program as it seems a bit fishy (as in potentially unsafe) to me. Quote Link to post Share on other sites
AD Music 0 Posted January 22 Report Share Posted January 22 I got my files encrypted with .coos extension :[ is there literally any way i can get back my only one mp3 file Im soo sad :,( Quote Link to post Share on other sites
GT500 886 Posted January 23 Report Share Posted January 23 13 hours ago, AD Music said: I got my files encrypted with .coos extension :[ is there literally any way i can get back my only one mp3 file Im soo sad :,( It might be possible to use software intended for recovering MP3 files, as the ransomware only encrypts a small portion of the beginning of the files. Larger files that are in formats that are tolerant of missing data can actually be recovered, and some music and video formats fall into that category. Quote Link to post Share on other sites
halcetin 0 Posted January 25 Report Share Posted January 25 (edited) Sayın Emisoft Desteği; 27 .12. 2020 tarihinde dizustu bilgisayarıma .igal uzantılı virüs girdi C ve D de bulunan 700GB tüm arşivim (pdf, rar, mp3, wav, exel, word, jpeg.pnp,) şifrelendi virüs taraması yaptırdım açılmıyor Bu. igal uzantılı virüs için çözüm nedir ne yapmalıyım. beni aydınlatırsanız memnun olurum. _readme.txt asus pc için guncelleme.jpg.igal 2015 Yılı Mizan.pdf.igal Edited January 25 by halcetin Dosya eklemeyi unutmuştum onları ekledim. Quote Link to post Share on other sites
GT500 886 Posted January 26 Report Share Posted January 26 12 hours ago, halcetin said: Sayın Emisoft Desteği; 27 .12. 2020 tarihinde dizustu bilgisayarıma .igal uzantılı virüs girdi C ve D de bulunan 700GB tüm arşivim (pdf, rar, mp3, wav, exel, word, jpeg.pnp,) şifrelendi virüs taraması yaptırdım açılmıyor Bu. igal uzantılı virüs için çözüm nedir ne yapmalıyım. beni aydınlatırsanız memnun olurum. This is a newer variant of STOP/Djvu. If you have an offline ID, then once we can find the decryption key for this variant and add it to our database you should be able to recover your files. However, if you have an online ID (which is more likely) then it will not be possible to recover your files. There is more information at the following link:https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/ Google tarafından sağlanan çeviri: Bu, STOP / Djvu'nun daha yeni bir çeşididir. Çevrimdışı bir kimliğiniz varsa, bu varyant için şifre çözme anahtarını bulup veritabanımıza ekledikten sonra dosyalarınızı kurtarabilmeniz gerekir. Ancak, çevrimiçi bir kimliğiniz varsa (ki bu daha olasıdır), dosyalarınızı kurtarmanız mümkün olmayacaktır. Aşağıdaki bağlantıda daha fazla bilgi var:https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/ Quote Link to post Share on other sites
halcetin 0 Posted January 27 Report Share Posted January 27 Özür dilerim. Çevrim dişı kimlik varsa anlamadığımdan soruyorum. virusu yayan kişinin PC bıraktıgı notun içinde beni oku t1 ile biten Kişisel Kimlikten bahsediyorsanız var. ilk mesajımda size gönderdim Sizin kimlik ID bu var uzantı .igal Quote Link to post Share on other sites
GT500 886 Posted January 28 Report Share Posted January 28 16 hours ago, halcetin said: Özür dilerim. Çevrim dişı kimlik varsa anlamadığımdan soruyorum. virusu yayan kişinin PC bıraktıgı notun içinde beni oku t1 ile biten Kişisel Kimlikten bahsediyorsanız var. ilk mesajımda size gönderdim Sizin kimlik ID bu var uzantı .igal Yes, I was referring to the Personal ID in the "_readme.txt" file that you attached to your post. It's an offline ID, so if you just run the decrypter once every week or two then if someone sends us a private key for this variant the decrypter should start decrypting your files once we add the private key to our database. Google tarafından sağlanan çeviri: Evet, gönderinize eklediğiniz "_readme.txt" dosyasındaki Kişisel Kimliğe atıfta bulunuyordum. Bu çevrimdışı bir kimliktir, bu nedenle şifre çözücüyü haftada bir veya iki kez çalıştırırsanız, biri bize bu değişken için özel bir anahtar gönderirse şifre çözücü, özel anahtarı veritabanımıza ekledikten sonra dosyalarınızın şifresini çözmeye başlamalıdır. Quote Link to post Share on other sites
AD Music 0 Posted January 28 Report Share Posted January 28 10 hours ago, GT500 said: Yes, I was referring to the Personal ID in the "_readme.txt" file that you attached to your post. It's an offline ID, so if you just run the decrypter once every week or two then if someone sends us a private key for this variant the decrypter should start decrypting your files once we add the private key to our database. Google tarafından sağlanan çeviri: Evet, gönderinize eklediğiniz "_readme.txt" dosyasındaki Kişisel Kimliğe atıfta bulunuyordum. Bu çevrimdışı bir kimliktir, bu nedenle şifre çözücüyü haftada bir veya iki kez çalıştırırsanız, biri bize bu değişken için özel bir anahtar gönderirse şifre çözücü, özel anahtarı veritabanımıza ekledikten sonra dosyalarınızın şifresini çözmeye başlamalıdır. What decrypter should i use, And what is private key ? Quote Link to post Share on other sites
GT500 886 Posted January 29 Report Share Posted January 29 14 hours ago, AD Music said: What decrypter should i use Our decrypter is available at the following link:https://www.emsisoft.com/ransomware-decryption-tools/stop-djvu Note that it can only decrypt files that have offline ID's, and only if we have received the private key from a victim who has paid the ransom. 14 hours ago, AD Music said: And what is private key ? The STOP/Djvu ransomware uses RSA keys, and there are always two keys (public and private). The public key is used when encrypting files, and the private key is used when decrypting files. In the case of STOP/Djvu the private keys are stored in a database that only the criminals have access to, so we can only get them if a victim pays the ransom and donates the private key to us. Quote Link to post Share on other sites
jonnel 0 Posted February 2 Report Share Posted February 2 Hello Good Day! how to recover my files the key for New Variant online ID: e5WgM05s0iMJ8aghw5tNWbl5jYI0X1guY7GSFdW5 Quote Link to post Share on other sites
GT500 886 Posted February 2 Report Share Posted February 2 2 hours ago, jonnel said: New Variant online ID: e5WgM05s0iMJ8aghw5tNWbl5jYI0X1guY7GSFdW5 This is a newer variant of STOP/Djvu, and your ID is an online ID, so there is currently no way to decrypt your files. There is more information at the following link:https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/ Quote Link to post Share on other sites
IndySlot 0 Posted February 19 Author Report Share Posted February 19 Hi, So quite a while ago I backed up a lot of files that where encrypted by the ransomware. All the files are on a external hard drive safely stored without access to my computer. What is the best way to check if those files are decryptable? Just sticking it back in my computer with a fresh install of windows doesn't seem like the best (safe) way to do it. How can I safely scan the files with the emsisoft decrypter? Quote Link to post Share on other sites
GT500 886 Posted February 20 Report Share Posted February 20 11 hours ago, IndySlot said: Just sticking it back in my computer with a fresh install of windows doesn't seem like the best (safe) way to do it. It will be safe as long as you don't try to open any files. You can also run an Anti-Virus scan on the backed up files to see if the backup contains the ransomware, that way it can be safely removed. Quote Link to post Share on other sites
IndySlot 0 Posted February 20 Author Report Share Posted February 20 I tried the decryption tool, but it appears I have an online ID. What is the best way to know when maybe in the future it will be able to decrypt? So that I don't have to consistently try decrypting once in a while. I read in your message that there is a small chance of decrypting online ID's in the future. Quote Link to post Share on other sites
GT500 886 Posted February 21 Report Share Posted February 21 15 hours ago, IndySlot said: What is the best way to know when maybe in the future it will be able to decrypt? We also recommend keeping an eye on BleepingComputer's newsfeed, as they will usually report on new developments with ransomware decrypters:https://www.bleepingcomputer.com/ If you have an RSS feed reader, then they also have an RSS feed so that you don't have to manually check for news:https://www.bleepingcomputer.com/feed/ 15 hours ago, IndySlot said: I read in your message that there is a small chance of decrypting online ID's in the future. If law enforcement is able to catch the criminals or otherwise gain access to their servers and release their private keys for use in decrypters, then we can add them to our database so that everyone can get their files back. Quote Link to post Share on other sites
DiskTuna 0 Posted March 28 Report Share Posted March 28 On 1/16/2021 at 12:55 PM, GT500 said: Someone posted a link to something called "DiskTuna" claiming it can recover files. The post has since been hidden, and I have asked our lab team to look at the program as it seems a bit fishy (as in potentially unsafe) to me. Hi, I am the author of the disktuna tool, it can not recover the files, it merely tries to make files playable/viewable by appending a valid header and make header point to valid data, bypassing the the first 150 or so encrypted KB. Your own STOP DJVU FAQ mentions my tool: "Are there any ways to recover/repair files that can't be decrypted? In most cases this is not possible, however there is a tool that can help repair some videos that have been encrypted. This tool was made by a third-party, and they are not affiliated with us, however one of our developers has verified that it does work in at least some cases. You can find more information in the YouTube video at this link (there's a download link in the video's description)." Quote Link to post Share on other sites
GT500 886 Posted March 29 Report Share Posted March 29 8 hours ago, DiskTuna said: Hi, I am the author of the disktuna tool, it can not recover the files, it merely tries to make files playable/viewable by appending a valid header and make header point to valid data, bypassing the the first 150 or so encrypted KB. Your own STOP DJVU FAQ mentions my tool: "Are there any ways to recover/repair files that can't be decrypted? In most cases this is not possible, however there is a tool that can help repair some videos that have been encrypted. This tool was made by a third-party, and they are not affiliated with us, however one of our developers has verified that it does work in at least some cases. You can find more information in the YouTube video at this link (there's a download link in the video's description)." I never came back to mention it, but DiskTuna is legit, and is recommended by ransomware experts to try to repair some files that can't be decrypted. I'll replace the link to the video with the following:https://www.disktuna.com/media_repair-file-repair-for-stop-djvu-mp3-mp4-3gp/ 1 Quote Link to post Share on other sites
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