勒索病毒安全使用方法（.lyWlQKQnU勒索病毒lockbit3.0勒索病毒解密勒索病毒恢复数据）

目录

前言：简介

一、什么是.lyWlQKQnU勒索病毒？

二、中了 .lyWlQKQnU 后缀勒索病毒文件怎么恢复？

三、恢复案例介绍：

四、系统安全防护措施建议：

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前言：简介

近日，国内某企业反馈其内部服务器上的所有文件都被加密.lyWlQKQnU后缀无法打开，这也导致了部分业务的瘫痪。据了解，加密文件的拓展名为“.lyWlQKQnU”。通过对被加密样本的分析以及检测，可判断此次攻击的病毒为.lockbit3.0勒索病毒家族旗下的最新变种。该勒索病毒主要通过爆破远程桌面，入侵后进行手动执行加密程序。同时受害者机器上被发现工具，从工具看该勒索病毒传播在还在不断攻击内网其他机器以及想通过抓取密码的方式获取更多机器的密码。

而且这个病毒跟以往的病毒不一样的骚操作是：文件被加密后，会修改文件名为随机字母 数字的名称，再加上加密后缀名。例如原文件名称“1.jpg”，被该病毒加密后则会变成“007meBx.lyWlQKQnU”，这将导致用户无法识别原来的文件是什么名称。只能通过解密后文件才可以还原回原文件的名称。

如果您同样遭遇了此勒索病毒的感染，可添加我们的技术服务号（sjhf91）进行免费咨询获取数据恢复的相关帮助。

下面我们来了解看看这个.lyWlQKQnU后缀勒索病毒。

一、什么是.lyWlQKQnU勒索病毒？

我们发现，.lyWlQKQnU 是一个勒索病毒后缀的名称。当我们在我们的测试系统上启动一个样本时，它会加密文件且修改文件名称为随机字母 数字，并在文件名后附加“ .lyWlQKQnU ”扩展名。例如，最初标题为“ 1.jpg ”的文件显示为“ 007meBx.lyWlQKQnU”，“ 2.jpg ”显示为“008VCOA.lyWlQKQnU ”，依此类推。加密过程完成后，此勒索软件会在桌面上创建一个勒索记录 - “lyWlQKQnU.README.txt”。

不幸的是，如果存储您宝贵信息的数据文件被锁定并使用“.lyWlQKQnU”扩展名重命名，您应该知道您的 PC 感染了一种.lockbit3.0勒索病毒家族旗下的病毒。

.lyWlQKQnU 勒索病毒是如何传播感染的？

经过分析中毒后的机器环境判断，该勒索病毒基本上是通过以下几种方式入侵。

远程桌面口令爆破

关闭远程桌面，或者修改默认用户administrator。

数据库弱口令攻

检查数据库的sa用户的密码复杂度。

二、中了 .lyWlQKQnU 后缀勒索病毒文件怎么恢复？

此后缀病毒文件由于加密算法问题，每台感染的电脑服务器文件都不一样，需要独立检测与分析中毒文件的病毒特征与加密情况，才能确定最适合的修复方案。

考虑到数据恢复需要的时间、成本、风险等因素，建议如果数据不太重要，建议直接全盘扫描杀毒后全盘格式化重装系统，后续做好系统安全防护工作即可。如果受感染的数据确实有恢复的价值与必要性，可添加我们的技术服务号（sjhf91）进行免费咨询获取数据恢复的相关帮助。

三、恢复案例介绍：

1. 被加密数据情况

一台公司服务器，需要恢复的数据42万 个，主要恢复业务软件的数据库文件。

2. 数据恢复完成情况

数据完成恢复，客户所需的全部文件均已成功恢复，恢复率等于100%。

四、系统安全防护措施建议：

预防远比救援重要，所以为了避免出现此类事件，强烈建议大家日常做好以下防护措施：

①　及时给办公终端和服务器打补丁，修复漏洞，包括操作系统以及第三方应用的补丁，防止攻击者通过漏洞入侵系统。

②　尽量关闭不必要的端口，如139、445、3389等端口。如果不使用，可直接关闭高危端口，降低被漏洞攻击的风险。

③　不对外提供服务的设备不要暴露于公网之上，对外提供服务的系统，应保持较低权限。

④　企业用户应采用高强度且无规律的密码来登录办公系统或服务器，要求包括数字、大小写字母、符号，且长度至少为8位的密码，并定期更换口令。

⑤　数据备份保护，对关键数据和业务系统做备份，如离线备份，异地备份，云备份等， 避免因为数据丢失、被加密等造成业务停摆，甚至被迫向攻击者妥协。

⑥　敏感数据隔离，对敏感业务及其相关数据做好网络隔离。避免双重勒索病毒在入侵后轻易窃取到敏感数据，对公司业务和机密信息造成重大威胁。

⑦　尽量关闭不必要的文件共享。

⑧　提高安全运维人员职业素养，定期进行木马病毒查杀。

.lyWlQKQnU后缀病毒勒索信lyWlQKQnU.README.txt说明文件内容：

~~~ LockBit 3.0 the world's fastest and most stable ransomware from 2019~~~

>>>>> Your data is stolen and encrypted.
If you don't pay the ransom, the data will be published on our TOR darknet sites. Keep in mind that once your data appears on our leak site, it could be bought by your competitors at any second, so don't hesitate for a long time. The sooner you pay the ransom, the sooner your company will be safe.

Tor Browser Links:
http://lockbitapt2d73krlbewgv27tquljgxr33xbwwsp6rkyieto7u4ncead.onion
http://lockbitapt2yfbt7lchxejug47kmqvqqxvvjpqkmevv4l3azl3gy6pyd.onion
http://lockbitapt34kvrip6xojylohhxrwsvpzdffgs5z4pbbsywnzsbdguqd.onion
http://lockbitapt5x4zkjbcqmz6frdhecqqgadevyiwqxukksspnlidyvd7qd.onion
http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion
http://lockbitapt72iw55njgnqpymggskg5yp75ry7rirtdg4m7i42artsbqd.onion
http://lockbitaptawjl6udhpd323uehekiyatj6ftcxmkwe5sezs4fqgpjpid.onion
http://lockbitaptbdiajqtplcrigzgdjprwugkkut63nbvy2d5r4w2agyekqd.onion
http://lockbitaptc2iq4atewz2ise62q63wfktyrl4qtwuk5qax262kgtzjqd.onion

Links for normal browser:
http://lockbitapt2d73krlbewgv27tquljgxr33xbwwsp6rkyieto7u4ncead.onion.ly
http://lockbitapt2yfbt7lchxejug47kmqvqqxvvjpqkmevv4l3azl3gy6pyd.onion.ly
http://lockbitapt34kvrip6xojylohhxrwsvpzdffgs5z4pbbsywnzsbdguqd.onion.ly
http://lockbitapt5x4zkjbcqmz6frdhecqqgadevyiwqxukksspnlidyvd7qd.onion.ly
http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion.ly
http://lockbitapt72iw55njgnqpymggskg5yp75ry7rirtdg4m7i42artsbqd.onion.ly
http://lockbitaptawjl6udhpd323uehekiyatj6ftcxmkwe5sezs4fqgpjpid.onion.ly
http://lockbitaptbdiajqtplcrigzgdjprwugkkut63nbvy2d5r4w2agyekqd.onion.ly
http://lockbitaptc2iq4atewz2ise62q63wfktyrl4qtwuk5qax262kgtzjqd.onion.ly

>>>>> What guarantee is there that we won't cheat you?
We are the oldest ransomware affiliate program on the planet, nothing is more important than our reputation. We are not a politically motivated group and we want nothing more than money. If you pay, we will provide you with decryption software and destroy the stolen data. After you pay the ransom, you will quickly make even more money. Treat this situation simply as a paid training for your system administrators, because it is due to your corporate network not being properly configured that we were able to attack you. Our pentest services should be paid just like you pay the salaries of your system administrators. Get over it and pay for it. If we don't give you a decryptor or delete your data after you pay, no one will pay us in the future. You can get more information about us on Ilon Musk's Twitter https://twitter.com/hashtag/lockbit?f=live

>>>>> You need to contact us and decrypt one file for free on TOR darknet sites with your personal ID

Download and install Tor Browser https://www.torproject.org/
Write to the chat room and wait for an answer, we'll guarantee a response from you. If you need a unique ID for correspondence with us that no one will know about, tell it in the chat, we will generate a secret chat for you and give you his ID via private one-time memos service, no one can find out this ID but you. Sometimes you will have to wait some time for our reply, this is because we have a lot of work and we attack hundreds of companies around the world.

Tor Browser Links for chat:
http://lockbitsupa7e3b4pkn4mgkgojrl5iqgx24clbzc4xm7i6jeetsia3qd.onion
http://lockbitsupdwon76nzykzblcplixwts4n4zoecugz2bxabtapqvmzqqd.onion
http://lockbitsupn2h6be2cnqpvncyhj4rgmnwn44633hnzzmtxdvjoqlp7yd.onion
http://lockbitsupo7vv5vcl3jxpsdviopwvasljqcstym6efhh6oze7c6xjad.onion
http://lockbitsupq3g62dni2f36snrdb4n5qzqvovbtkt5xffw3draxk6gwqd.onion
http://lockbitsupqfyacidr6upt6nhhyipujvaablubuevxj6xy3frthvr3yd.onion
http://lockbitsupt7nr3fa6e7xyb73lk6bw6rcneqhoyblniiabj4uwvzapqd.onion
http://lockbitsupuhswh4izvoucoxsbnotkmgq6durg7kficg6u33zfvq3oyd.onion
http://lockbitsupxcjntihbmat4rrh7ktowips2qzywh6zer5r3xafhviyhqd.onion

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>> Your personal ID: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX <<<<<
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

>>>>> Warning! Do not delete or modify encrypted files, it will lead to problems with decryption of files!

>>>>> Don't go to the police or the FBI for help and don't tell anyone that we attacked you.
They won't help and will only make things worse for you. In 3 years not a single member of our group has been caught by the police, we are top notch hackers and we never leave a trail of crime. The police will try to prohibit you from paying the ransom in any way. The first thing they will tell you is that there is no guarantee to decrypt your files and remove stolen files, this is not true, we can do a test decryption before paying and your data will be guaranteed to be removed because it is a matter of our reputation, we make hundreds of millions of dollars and are not going to lose our revenue because of your files. It is very beneficial for the police and FBI to let everyone on the planet know about your data leak because then your state will get the fines budgeted for you due to GDPR and other similar laws. The fines will be used to fund the police and the FBI, they will eat more sweet coffee donuts and get fatter and fatter. The police and the FBI don't care what losses you suffer as a result of our attack, and we will help you get rid of all your problems for a modest sum of money. Along with this you should know that it is not necessarily your company that has to pay the ransom and not necessarily from your bank account, it can be done by an unidentified person, such as any philanthropist who loves your company, for example, Elon Musk, so the police will not do anything to you if someone pays the ransom for you. If you're worried that someone will trace your bank transfers, you can easily buy cryptocurrency for cash, thus leaving no digital trail that someone from your company paid our ransom. The police and FBI will not be able to stop lawsuits from your customers for leaking personal and private information. The police and FBI will not protect you from repeated attacks. Paying the ransom to us is much cheaper and more profitable than paying fines and legal fees.

>>>>> What are the dangers of leaking your company's data.
First of all, you will receive fines from the government such as the GDRP and many others, you can be sued by customers of your firm for leaking information that was confidential. Your leaked data will be used by all the hackers on the planet for various unpleasant things. For example, social engineering, your employees' personal data can be used to re-infiltrate your company. Bank details and passports can be used to create bank accounts and online wallets through which criminal money will be laundered. On another vacation trip, you will have to explain to the FBI where you got millions of dollars worth of stolen cryptocurrency transferred through your accounts on cryptocurrency exchanges. Your personal information could be used to make loans or buy appliances. You would later have to prove in court that it wasn't you who took out the loan and pay off someone else's loan. Your competitors may use the stolen information to steal technology or to improve their processes, your working methods, suppliers, investors, sponsors, employees, it will all be in the public domain. You won't be happy if your competitors lure your employees to other firms offering better wages, will you? Your competitors will use your information against you. For example, look for tax violations in the financial documents or any other violations, so you have to close your firm. According to statistics, two thirds of small and medium-sized companies close within half a year after a data breach. You will have to find and fix the vulnerabilities in your network, work with the customers affected by data leaks. All of these are very costly procedures that can exceed the cost of a ransomware buyout by a factor of hundreds. It's much easier, cheaper and faster to pay us the ransom. Well and most importantly, you will suffer a reputational loss, you have been building your company for many years, and now your reputation will be destroyed.

Read more about the GDRP legislation::
https://en.wikipedia.org/wiki/General_Data_Protection_Regulation
https://gdpr.eu/what-is-gdpr/
https://gdpr-info.eu/

>>>>> Don't go to recovery companies, they are essentially just middlemen who will make money off you and cheat you.
We are well aware of cases where recovery companies tell you that the ransom price is 5 million dollars, but in fact they secretly negotiate with us for 1 million dollars, so they earn 4 million dollars from you. If you approached us directly without intermediaries you would pay 5 times less, that is 1 million dollars.

>>>> Very important! For those who have cyber insurance against ransomware attacks.
Insurance companies require you to keep your insurance information secret, this is to never pay the maximum amount specified in the contract or to pay nothing at all, disrupting negotiations. The insurance company will try to derail negotiations in any way they can so that they can later argue that you will be denied coverage because your insurance does not cover the ransom amount. For example your company is insured for 10 million dollars, while negotiating with your insurance agent about the ransom he will offer us the lowest possible amount, for example 100 thousand dollars, we will refuse the paltry amount and ask for example the amount of 15 million dollars, the insurance agent will never offer us the top threshold of your insurance of 10 million dollars. He will do anything to derail negotiations and refuse to pay us out completely and leave you alone with your problem. If you told us anonymously that your company was insured for $10 million and other important details regarding insurance coverage, we would not demand more than $10 million in correspondence with the insurance agent. That way you would have avoided a leak and decrypted your information. But since the sneaky insurance agent purposely negotiates so as not to pay for the insurance claim, only the insurance company wins in this situation. To avoid all this and get the money on the insurance, be sure to inform us anonymously about the availability and terms of insurance coverage, it benefits both you and us, but it does not benefit the insurance company. Poor multimillionaire insurers will not starve and will not become poorer from the payment of the maximum amount specified in the contract, because everyone knows that the contract is more expensive than money, so let them fulfill the conditions prescribed in your insurance contract, thanks to our interaction.

>>>>> If you do not pay the ransom, we will attack your company again in the future.

,