Calum Ransomware

Calum Ransomware Description

Malware researchers are fighting an uphill battle when it comes to ransomware threats. Cybersecurity experts attempt to dissect data-locking Trojans and release free decryption tools publicly, but this is not always possible. Despite the numerous victims of ransomware who have been saved by the free decryption utilities published by malware experts, there are far more users who never manage to recover their data. Among the newest uncovered ransomware threats is the Calum Ransomware.

Propagation and Encryption

Upon studying the Calum Ransomware, malware researchers found that this is a variant of the Phobos Ransomware. The infection techniques utilized in the spreading of the Calum Ransomware are not known yet. Some researchers believe that the authors of the Calum Ransomware may have used the most popular propagation method when it comes to threats of this kind – mass spam email campaigns. This means that the attackers spam as many fake emails as they can to random unsuspecting users trying to convince them to open the attached file. The attachment is usually a macro-laced document that will infect the target computer upon launching. Of course, this remains as speculation since there are countless other propagation methods that are used by ransomware authors. Upon infecting a computer, the Calum Ransomware will search for files that are likely to be found on the system of any regular user – videos, music, photos, documents, spreadsheets, etc. All the data that fits the Calum Ransomware's criteria will be locked using an encryption algorithm. The file names of the locked files will be changed as this threat appends a new extension to the affected files – '.id[].[].Calum.' The Calum Ransomware generates a new and unique victim ID for each user that falls victim to it. This would help the attackers differentiate between the victims.

The Ransom Note

The Calum Ransomware will drop a ransom message in the shape of two files called 'info.txt' and 'info.hta.' The attackers demand a ransom fee from their victims and promise to send them a decryption key that is meant to reverse the damage that has been done to their data. The authors of the Calum Ransomware want to be paid in Bitcoin, which is not surprising, as most cyber crooks prefer cryptocurrency because this allows them to keep their anonymity and avoid persecution by law enforcement. The attackers have provided the victims with an email address where they can be contacted – ‘' For users who prefer instant messaging as means of communication, the creators of the Calum Ransomware have given out their Jabber contact details – ‘'

Ideally, you should avoid any contact with cyber crooks. They will attempt to sweet talk you into giving them your money and promise to provide you with the decryption key you need to unlock your data, but it is very likely that they will never deliver on these promises. This is why we would recommend you to invest in a legitimate anti-spyware application that will not only remove the Calum Ransomware from your PC but will also ensure that you do not end up with a similar problem again in the future.

Do You Suspect Your PC May Be Infected with Calum Ransomware & Other Threats? Scan Your PC with SpyHunter

SpyHunter is a powerful malware remediation and protection tool designed to help provide PC users with in-depth system security analysis, detection and removal of a wide range of threats like Calum Ransomware as well as a one-on-one tech support service. Download SpyHunter's FREE Malware Remover
Note: SpyHunter's scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read more on SpyHunter. Free Remover allows you to run a one-off scan and receive, subject to a 48-hour waiting period, one remediation and removal. Free Remover subject to promotional details and Special Promotion Terms. To understand our policies, please also review our EULA, Privacy Policy and Threat Assessment Criteria. If you no longer wish to have SpyHunter installed on your computer, follow these steps to uninstall SpyHunter.

Security Doesn't Let You Download SpyHunter or Access the Internet?

Solutions: Your computer may have malware hiding in memory that prevents any program, including SpyHunter, from executing on your computer. Follow to download SpyHunter and gain access to the Internet:
  • Use an alternative browser. Malware may disable your browser. If you're using IE, for example, and having problems downloading SpyHunter, you should open Firefox, Chrome or Safari browser instead.
  • Use a removable media. Download SpyHunter on another clean computer, burn it to a USB flash drive, DVD/CD, or any preferred removable media, then install it on your infected computer and run SpyHunter's malware scanner.
  • Start Windows in Safe Mode. If you can not access your Window's desktop, reboot your computer in "Safe Mode with Networking" and install SpyHunter in Safe Mode.
  • IE Users: Disable proxy server for Internet Explorer to browse the web with Internet Explorer or update your anti-spyware program. Malware modifies your Windows settings to use a proxy server to prevent you from browsing the web with IE.
If you still can't install SpyHunter? View other possible causes of installation issues.

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