RANSOM_JAVAWARE.A
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
This Trojan 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.
TECHNICAL DETAILS
7,669,470 bytes
JAR
No
07 Feb 2017
Connects to URLs/IPs, Encrypts files
Arrival Details
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Trojan adds the following folders:
- {Malware Path}\RansomDB
It drops the following file(s)/component(s):
- {Malware Path}\derby.log
- {Malware Path}\RansomDB\db.lck
- {Malware Path}\RansomDB\README_DO_NOT_TOUCH_FILES.txt
- {Malware Path}\RansomDB\service.properties
- {Malware Path}\RansomDB\log\log.ctrl
- {Malware Path}\RansomDB\log\log1.dat
- {Malware Path}\RansomDB\log\logmirror.ctrl
- {Malware Path}\RansomDB\log\README_DO_NOT_TOUCH_FILES.txt
- {Malware Path}\RansomDB\seg0\c10.dat
- {Malware Path}\RansomDB\seg0\c20.dat
- {Malware Path}\RansomDB\seg0\c31.dat
- {Malware Path}\RansomDB\seg0\c41.dat
- {Malware Path}\RansomDB\seg0\c51.dat
- {Malware Path}\RansomDB\seg0\c60.dat
- {Malware Path}\RansomDB\seg0\c71.dat
- {Malware Path}\RansomDB\seg0\c81.dat
- {Malware Path}\RansomDB\seg0\c90.dat
- {Malware Path}\RansomDB\seg0\ca1.dat
- {Malware Path}\RansomDB\seg0\cb1.dat
- {Malware Path}\RansomDB\seg0\cc0.dat
- {Malware Path}\RansomDB\seg0\cd1.dat
- {Malware Path}\RansomDB\seg0\ce1.dat
- {Malware Path}\RansomDB\seg0\cf0.dat
- {Malware Path}\RansomDB\seg0\c101.dat
- {Malware Path}\RansomDB\seg0\c111.dat
- {Malware Path}\RansomDB\seg0\c121.dat
- {Malware Path}\RansomDB\seg0\c130.dat
- {Malware Path}\RansomDB\seg0\c141.dat
- {Malware Path}\RansomDB\seg0\c150.dat
- {Malware Path}\RansomDB\seg0\c161.dat
- {Malware Path}\RansomDB\seg0\c171.dat
- {Malware Path}\RansomDB\seg0\c180.dat
- {Malware Path}\RansomDB\seg0\c191.dat
- {Malware Path}\RansomDB\seg0\c1a1.dat
- {Malware Path}\RansomDB\seg0\c1b1.dat
- {Malware Path}\RansomDB\seg0\c1c0.dat
- {Malware Path}\RansomDB\seg0\c1d1.dat
- {Malware Path}\RansomDB\seg0\c1e0.dat
- {Malware Path}\RansomDB\seg0\c1f1.dat
- {Malware Path}\RansomDB\seg0\c200.dat
- {Malware Path}\RansomDB\seg0\c211.dat
- {Malware Path}\RansomDB\seg0\c221.dat
- {Malware Path}\RansomDB\seg0\c230.dat
- {Malware Path}\RansomDB\seg0\c241.dat
- {Malware Path}\RansomDB\seg0\c251.dat
- {Malware Path}\RansomDB\seg0\c260.dat
- {Malware Path}\RansomDB\seg0\c271.dat
- {Malware Path}\RansomDB\seg0\c281.dat
- {Malware Path}\RansomDB\seg0\c290.dat
- {Malware Path}\RansomDB\seg0\c2a1.dat
- {Malware Path}\RansomDB\seg0\c2b1.dat
- {Malware Path}\RansomDB\seg0\c2c1.dat
- {Malware Path}\RansomDB\seg0\c2d0.dat
- {Malware Path}\RansomDB\seg0\c2e1.dat
- {Malware Path}\RansomDB\seg0\c2f0.dat
- {Malware Path}\RansomDB\seg0\c300.dat
- {Malware Path}\RansomDB\seg0\c311.dat
- {Malware Path}\RansomDB\seg0\c321.dat
- {Malware Path}\RansomDB\seg0\c331.dat
- {Malware Path}\RansomDB\seg0\c340.dat
- {Malware Path}\RansomDB\seg0\c351.dat
- {Malware Path}\RansomDB\seg0\c361.dat
- {Malware Path}\RansomDB\seg0\c371.dat
- {Malware Path}\RansomDB\seg0\c380.dat
- {Malware Path}\RansomDB\seg0\c391.dat
- {Malware Path}\RansomDB\seg0\c3a1.dat
- {Malware Path}\RansomDB\seg0\c3b1.dat
- {Malware Path}\RansomDB\seg0\c3c0.dat
- {Malware Path}\RansomDB\seg0\c3d1.dat
- {Malware Path}\RansomDB\seg0\c3e1.dat
- {Malware Path}\RansomDB\seg0\c3f1.dat
- {Malware Path}\RansomDB\seg0\c400.dat
- {Malware Path}\RansomDB\seg0\c411.dat
- {Malware Path}\RansomDB\seg0\c421.dat
- {Malware Path}\RansomDB\seg0\c430.dat
- {Malware Path}\RansomDB\seg0\c441.dat
- {Malware Path}\RansomDB\seg0\c451.dat
- {Malware Path}\RansomDB\seg0\c461.dat
- {Malware Path}\RansomDB\seg0\c470.dat
- {Malware Path}\RansomDB\seg0\c481.dat
- {Malware Path}\RansomDB\seg0\c490.dat
- {Malware Path}\RansomDB\seg0\README_DO_NOT_TOUCH_FILES.txt
Other Details
This Trojan connects to the following website to send and receive information:
- https://{BLOCKED}i.{BLOCKED}m.org/bot290990737:AAENyN2rY3nYT_S7eEIcVnEQmmpF0vNsTzI/sendMessage?chat_id=100925418&text=\t{Date&Time}\t{Operating System}\t{UserName}\tKeys{EncryptionKey}
It encrypts files with the following extensions:
- .3dm
- .3ds
- .3g2
- .3gp
- .7z
- .ai
- .alf
- .apk
- .app
- .apsx
- .asf
- .asp
- .asx
- .avi
- .bmp
- .com
- .crdownload
- .css
- .csv
- .dat
- .dda
- .doc
- .docx
- .eps
- .exe
- .flv
- .fnt
- .font
- .gbr
- .ged
- .gif
- .htm
- .html
- .hwp
- .ics
- .iff
- .indd
- .jpg
- .js
- .jsp
- .key
- .keychain
- .log
- .m3u
- .m4a
- .m4v
- .max
- .mid
- .mov
- .mp3
- .mp4
- .mpa
- .mpg
- .msg
- .msi
- .obj
- .odt
- .oft
- .pages
- .part
- .pct
- .php
- .png
- .pps
- .ppt
- .pptx
- .ps
- .psd
- .pspimage
- .ra
- .rar
- .rm
- .rtf
- .sdf
- .srt
- .svg
- .swf
- .tar
- .tar.gz
- .tax2012
- .tax2014
- .tex
- .tga
- .thm
- .tif
- .tiff
- .torrent
- .ttf
- .txt
- .vcf
- .vob
- .wav
- .wma
- .wmv
- .wpd
- .wps
- .xhtml
- .xlr
- .xls
- .xlsx
- .xml
- .yuv
- .zip
It renames encrypted files using the following names:
- {Original Filename}.aes
It does the following:
- It only encrypts files under the specific directory "C:\Users\USER\Desktop"
SOLUTION
9.850
13.206.06
07 Feb 2017
13.207.00
08 Feb 2017
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Identify and terminate files detected as RANSOM_JAVAWARE.A
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 4
Search and delete this folder
- {MalwarePath}\RansomDB
Step 5
Search and delete these files
- {MalwarePath}\derby.log
Step 6
Scan your computer with your Trend Micro product to delete files detected as RANSOM_JAVAWARE.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
Step 7
Restore encrypted files from backup.
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