The Dell SonicWall
Threats Research team has received reports of a new Ransomware Trojan, Ryzerlo
which encrypts the victim's files and leaves an email address to be contacted
to unlock victim's files.
Infection cycle:
The Trojan comes
across as Pokemon Go game with the icon
Once the victim
installs the executable, the trojan adds the some changes to the registry.
The Trojan adds two autostart objects to enable startup after reboot:
- %APPDATA%\Roaming\Microsoft\Windows\Start
Menu\Programs\Startup\[numbers].exe (copy of original)
It tries to connect to
the C&C server and then the trojan encrypts
all the victims documents with extensions * .txt, * .rtf, * .doc, * .pdf, *
.mht, * .docx, * .xls, * .xlsx, * .ppt, * .pptx, * .odt, * .jpg, *. png, *
.csv, * .sql, * .mdb, * .sln, * .php, * .asp, * .aspx, * .html, * .xml, * .psd,
* .htm, * .gif, * .png with .locked extension.
The trojan creates the
following two files on the victim's desktop. One include random text and another one include email address to contact.
We urge our users to
always be vigilant and cautious with any unsolicited attachments specially if
you are not certain of the source. If you are responsible for your system and network security, it's time to patch your security devices.
Source : Dell SonicWall Center
Have a nice day.
(Be knowledgeable, pass it on then)
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