Ransomware has persistently been a significant issue for people and organisations in the rapidly changing environment of cybersecurity threats. Of all the different types of ransomware, victims are most afraid of the infamous Locky ransomware.<\/p>\n\n\n\n
When Locky first surfaced in 2016, it attracted much attention because of its advanced encryption methods and disastrous effects on victims’ data. Despite efforts to stop its spread, Locky has reappeared, posing a global cybersecurity threat. But there are a ton of things you did not know about the ransomeware. So come along as we discuss everything you need about locky ransomware.<\/p>\n\n\n\n
Ransomware, such as Locky ransomware, is a kind of software that encrypts files on your computer and demands payment to unlock the files. Typically, Locky appears as an email attachment that appears to be gibberish. If the file seems unreadable, a note within the document suggests that you allow macros. If you do this, the macro launches code that encrypts data, possibly including Office documents, movies, and photos, and stores the Locky ransomware to your drive. <\/p>\n\n\n\n
The so-called Necurs Botnet, regarded as one of the biggest botnets before it went dormant, was responsible for the vast email campaigns. Necurs mainly disseminated the Dridex banking Trojan and the ransomware Locky through its spam emails.<\/p>\n\n\n\n
Receiving an email containing the malware attached to a Microsoft Word document is the most often reported way for Locky to spread. The document asks the user to enable macros to see it and is completely blank. to prepare Locky’s cargo. Locky also encrypts network files that users can access and installs.bmp and.txt files.<\/p>\n\n\n\n
This ransomware has propagated differently than most others since it does so through attachments and macros instead of being installed by a Trojan or using an already-discovered exploit.<\/p>\n\n\n\n
After being identified for the first time in 2016, the Locky ransomware quickly became one of the biggest online malware threats. Although Locky isn’t operating right now, additional ransomware versions of Locky have surfaced.<\/p>\n\n\n\n
Many versions that employ different extensions for file encryption have been made available. Numerous expansions bear the names of mythological characters. Locky was the extension used for encrypted files when they were initially published. For encrypted files, other versions used the.zepto,.odin,.shit,.thor.aesir, and.Z extensions.<\/p>\n\n\n\n
It’s also noteworthy that it can find and encrypt private files stored on local devices, portable drives, and mapped and unmapped network shares if they are accessible. This implies that network pathways may become infected even without a drive letter. Locky used an asymmetric RSA-2048 cypher and a symmetric AES-128 cypher to unread the victims’ essential files.<\/p>\n\n\n\n
One notable modification in Locky’s initial release (1.0) was the total jumble of the victims’ filenames. The “.locky” extension was added after each filename was converted into a string of 32 hexadecimal characters. “8469F0FE8432F4F84DCC48462F435454.locky” is one example of this drastic change. The ransomware also left links to the victims’ unique decryptor website in ransom notes named “_Locky_recover_instructions.txt” on the desktop. A ransom of 0.5 bitcoin was sought.<\/p>\n\n\n\n
Hackers found great success with the Locky ransomware, which gave rise to several Locky ransomware copies and variants.<\/p>\n\n\n\n
Locky and fileless PowerWare malware were combined as PowerLocky. It was created with PowerShell and shared Locky’s encrypted file extensions and phishing emails. PowerLocky was operational during the summer of 2016, and free applications are currently available to decrypt the encrypted files.<\/p>\n\n\n\n
When Diablo first appeared in the middle of 2016, it used the.diablo6 file extension for encrypted data. ZIP attachments were a common feature of Diablo spam emails, and ransomware altered the encryption technique to add more complex anti-analysis schemes and evade detection.<\/p>\n\n\n\n
In June 2016, the ransomware Zepto made its appearance. It employed many of the same methods as the ransomware Locky. The body of the emails contained the victim’s first name and a ZIP attachment that held an executable file for JavaScript. The. Zepto extension would be appended to each encrypted file.<\/p>\n\n\n\n
Odin launched its initial spam campaigns in September 2016, primarily aimed at US users, following Zepto’s lead. Other than appending the Odin’s extension to encrypted files, the ransomware behaved in the same manner as Locky.<\/p>\n\n\n\n
Late in 2016, Osiris made an appearance. It used the. Osiris extension for encrypted files and included a novel encryption method. The attackers employed malvertising and spam to spread the malicious code. They also put in place a more intricate communication protocol for command and control, which makes it harder to locate and take down the ransomware’s supporting infrastructure. Osiris would infect Android and macOS devices in addition to Windows.<\/p>\n\n\n\n
Early in 2017, the Locky ransomware variant was discovered. A large-scale spam campaign that distributed ZIP attachments was the first step. Like other Locky variations, encrypted files in Thor were saved with a unique file extension (.thor). It also included code obfuscation techniques to further complicate discovery for cybersecurity researchers.<\/p>\n\n\n\n
It first appeared in the summer of 2017, using the Finnish name “Lukittu,” which means “locked.” The attackers spread the ransomware using distinct ransom notes and PDF files in spam emails. Files with the.lukitus extension were encrypted.<\/p>\n\n\n\n
A few other Locky ransomware operations replicated the original approach, substituting the encrypted files with alternate extensions (e.g., aesir, asasin, loptr, shit, ykcol, and. Z).<\/p>\n\n\n\n
Preventing malware from entering your system is the most vigorous defense against the destructive impacts of Locky ransomware attacks on your company. Our recommendation is to take a comprehensive approach to security.<\/p>\n\n\n\n
A strong antivirus program is necessary yet insufficient for a company’s cybersecurity. We advise you to use a robust solution that can provide traffic-based malware blocking, DNS filtering, real-time scanning, and multi-layered AI-powered security if you want to be completely safe. You can also look at our Endpoint Prevention, Detection, and Response (EPDR) platform for the most excellent endpoint protection. This multi-layered security suite combines threat hunting, prevention, and mitigation into one package.<\/p>\n\n\n\n
Many hackers expect you to open a malicious attachment or click on a bogus link to become infected, counting on you not paying attention to what your emails contain (see Locky’s MO). Make sure the links you wish to click lead to the intended location by paying attention to them. Never open attachments or click on links that you receive from unidentified, surprising, or unwelcome sources. You should also consider email security software such as our HeimdalTM Email Security.<\/p>\n\n\n\n
It’s crucial to understand that your firewall cannot safeguard your gadgets on its own while defending your house from intrusions like the ones carried out by the Locky family. You must take great precautions to secure your digital life. Since most of us work from home due to the pandemic, having an all-around security solution at home is just as critical as having one at work. Since HeimdalTM Premium Security Home adds the particular threat prevention layer of HeimdalTM Threat Prevention Home to its faultless, industry-leading detection, we advise using it for this task. Stop ransomware, data leaks, viruses, APTs, exploits, and cutting-edge online threats with HeimdalTM Next-Gen Antivirus Home.<\/p>\n\n\n\n
We can learn how costly and destructive ransomware assaults may be from Locky and other incidents. Therefore, preventing problems early on is far more prudent than responding later.<\/p>\n\n\n\n
The following actions will stop Locky, its variations, and other ransomware attacks:<\/p>\n\n\n\n