RANSOM_XEROWARE.JNA

This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It connects to certain websites to send and receive information. However, as of this writing, the said sites are inaccessible.

It encrypts files with specific file extensions. It drops files as ransom note.

Arrival Details

This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other Details

This Ransomware connects to the following website to send and receive information:

• http://{BLOCKED}.{BLOCKED}.146.199/index.php?info={MachineName}{ComputerUsername}

However, as of this writing, the said sites are inaccessible.

Ransomware Routine

This Ransomware encrypts files with the following extensions:

• .txt
• .doc
• .docx
• .xls
• .xlsx
• .ppt
• .pptx
• .odt
• .jpg
• .png
• .csv
• .sql
• .mdb
• .sln
• .php
• .asp
• .aspx
• .html
• .xml
• .psd
• .pdf

It appends the following extension to the file name of the encrypted files:

• .XERO

It drops the following file(s) as ransom note:

• %Desktop%\XeroWare_ReadME.txt

(Note: %Desktop% is the desktop folder, where it usually is C:\Documents and Settings\{user name}\Desktop in Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\Desktop in Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

It leaves text files that serve as ransom notes containing the following text:

• "Your files have been encrypted and your computer has been infected with XeroWare Ransom 1.2.", "Q&A:", "1) What Should I do?", "A: Pay the specific amount we are asking from you in order to decrypt your files.", "2) Can i try to remove the malware?", "A: If you try anything your files will be removed, YOU have been WARNED.", "3) How can i pay in order to decrypt my files ?", "A: Copy the provided btc address and send the money.", "4) How do i verify my payment?", "A: You provide the payment transaction ID and you click confirm transaction.", "5) What will happen if the payment transaction is not valid?", "A: If you try to provide anything alike to fake or not valid your files will be destroyed permanetly.", "6) I have paid and verified my transaction how do i decrypt my files?", "A: If you have paid and verified your transaction just simply click the decrypt button and everything will revert back to normal.","You have 96 hours in order to complete that task, otherwise your files will be destroyed.", "Time has already started...",