Table of Contents
This tip is about the how To get safe From WanaCrypt0r Ransomware. So read this free guide, How To get safe From WanaCrypt0r Ransomware step by step. If you have query related to same article you may contact us.
How To get safe From WanaCrypt0r Ransomware – Guide
In most cases, ransomware does not spread quickly. WannaCrypt (also known as WannaCry, WanaCrypt0r, WCrypt or WCRY) is a ransomware attack that relies on victims downloading and executing a malicious email message. In this unique example, however, the ransomware authors exploited publicly available exploit code to propagate WannaCrypt. For being like a worm features, standard ransomware has become a considerably more powerful cyber attack as a result of this exploit code. Despite the availability of a patch, the worm-like properties of this ransomware allowed it to infect unpatched PCs.
On May 12, 2017, the world was introduced to a new ransomware that spreads like a worm exploiting previously patched vulnerabilities. While most computers receive security updates automatically, some individuals and organizations may choose to defer patch deployment. Unfortunately, the ransomware known as WannaCrypt appears to have infected PCs that have not been patched for these flaws. We remind you to update your IT systems if you haven’t already done so while the attack is in progress.
How does the attack work?
The threat arrives as a Trojan dropper that has the following two components:
- A component that attempts to exploit the SMB vulnerability CVE-2017-0145 on other computers
- The ransomware known as WannaCrypt
The dropper tries to connect the following domains using the InternetOpenUrlA() API:
If the connection to the domains is successful, the dropper will not further infect the system with ransomware or try to exploit other systems to spread; it simply stops execution. However, if the connection fails, the threat continues to drop the ransomware and creates a service on the system.
In others words, unlike most malware infections, IT administrators should NOT block these domains. Note that the malware is not proxy aware, so a local DNS record may be required. This doesn’t have to point to the Internet, but can be resolved to any accessible server that accepts connections on TCP 80.
The threat creates a service called msecsvc2.0, whose function is to exploit the SMB vulnerability on other computers accessible by the infected system:
Service Name: msecsvc2.0 Service Description: (Microsoft Security Center (2.0) Service) Service Parameters: “-m security”
How WannaCry Ransomware Is Affecting Your Organization’s IT Systems
The ransomware component is a dropper that contains a password-protected .zip file in its resources section. The document encryption routine and the files in the .zip file contain support tools, a decryption tool and the ransom message. In the samples we reviewed, the password for the .zip file is “WNcry@2ol7”.
When run, WannaCrypt creates the following registry keys:
It changes the wallpaper to a ransom message by modifying the following registry key:
It creates the following files in the malware’s working directory:
WannaCrypt can also create the following files:
It can create a randomly named service that has the following ImagePath associated with it: “cmd.exe /c “
Final note
I hope you like the guide How To get safe From WanaCrypt0r Ransomware. In case if you have any query regards this article you may ask us. Also, please share your love by sharing this article with your friends.