TROJ_RANSOM.USR
W32/Filecoder.AY (Fortinet), Trojan-Banker.Win32.Banker (Ikarus), Trojan-Ransom.Win32.Rakhni.g (Kaspersky), Win32/Filecoder.AY trojan (NOD32),
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
Threat Type:
Trojan
Destructiveness:
No
Encrypted:
In the wild::
Yes
OVERVIEW
TECHNICAL DETAILS
Instalación
Este malware infiltra el/los siguiente(s) archivo(s)/componente(s):
- %System Root%\msg.exe
- %System Root%\КАК_РАСШИФРОВАТЬ_ФАЙЛЫ.txt
(Nota: %System Root% es la carpeta raíz, normalmente C:\. También es la ubicación del sistema operativo).
)Otras modificaciones del sistema
Agrega las siguientes entradas de registro como parte de la rutina de instalación:
HKEY_CLASSES_ROOT\.ACCDB
{Default} = "msg"
HKEY_CLASSES_ROOT\.DOCX
{Default} = "msg"
HKEY_CLASSES_ROOT\.XLSX
{Default} = "msg"
HKEY_CLASSES_ROOT\msg\shell\
open\command
{Default} = ""%System Root%\msg.exe" "%1""
HKEY_CLASSES_ROOT\.psd
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.7Z
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.ACCDB
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.DOC
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.DOCX
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.GIF
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.JPG
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.MDB
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.PDF
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.PNG
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.PSD
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.RTF
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.RAR
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.XLS
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.XLSX
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.XML
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
.ZIP
{Default} = "msg"
HKEY_CURRENT_USER\Software\Classes\
msg\shell\open\
command
{Default} = ""%System Root%\msg.exe" "%1""
Agrega las siguientes claves de registro como parte de la rutina de instalación:
HKEY_CLASSES_ROOT\.ACCDB
HKEY_CLASSES_ROOT\.DOCX
HKEY_CLASSES_ROOT\.XLSX
HKEY_CLASSES_ROOT\msg
HKEY_CLASSES_ROOT\msg\shell
HKEY_CLASSES_ROOT\msg\shell\
open
HKEY_CLASSES_ROOT\msg\shell\
open\command
HKEY_CURRENT_USER\Software\Classes\
.7Z
HKEY_CURRENT_USER\Software\Classes\
.ACCDB
HKEY_CURRENT_USER\Software\Classes\
.DOC
HKEY_CURRENT_USER\Software\Classes\
.DOCX
HKEY_CURRENT_USER\Software\Classes\
.GIF
HKEY_CURRENT_USER\Software\Classes\
.JPG
HKEY_CURRENT_USER\Software\Classes\
.MDB
HKEY_CURRENT_USER\Software\Classes\
.PDF
HKEY_CURRENT_USER\Software\Classes\
.PNG
HKEY_CURRENT_USER\Software\Classes\
.PSD
HKEY_CURRENT_USER\Software\Classes\
.RAR
HKEY_CURRENT_USER\Software\Classes\
.RTF
HKEY_CURRENT_USER\Software\Classes\
.XLS
HKEY_CURRENT_USER\Software\Classes\
.XLSX
HKEY_CURRENT_USER\Software\Classes\
.XML
HKEY_CURRENT_USER\Software\Classes\
.ZIP
HKEY_CURRENT_USER\Software\Classes\
msg
HKEY_CURRENT_USER\Software\Classes\
msg\shell
HKEY_CURRENT_USER\Software\Classes\
msg\shell\open
HKEY_CURRENT_USER\Software\Classes\
msg\shell\open\
command
Modifica las siguientes entradas de registro:
HKEY_CLASSES_ROOT\.7Z
{Default} = "msg"
(Note: The default value data of the said registry entry is "WinRAR".)
HKEY_CLASSES_ROOT\.doc
{Default} = "msg"
(Note: The default value data of the said registry entry is "Word.Document.8".)
HKEY_CLASSES_ROOT\.gif
{Default} = "msg"
(Note: The default value data of the said registry entry is "giffile" .)
HKEY_CLASSES_ROOT\.jpg
{Default} = "msg"
(Note: The default value data of the said registry entry is "jpegfile" .)
HKEY_CLASSES_ROOT\.mdb
{Default} = "msg"
(Note: The default value data of the said registry entry is "Access.Application.11".)
HKEY_CLASSES_ROOT\.pdf
{Default} = "msg"
(Note: The default value data of the said registry entry is "AcroExch.Document".)
HKEY_CLASSES_ROOT\.png
{Default} = "msg"
(Note: The default value data of the said registry entry is "pngfile".)
HKEY_CLASSES_ROOT\.RAR
{Default} = "msg"
(Note: The default value data of the said registry entry is "WinRAR" .)
HKEY_CLASSES_ROOT\.rtf
{Default} = "msg"
(Note: The default value data of the said registry entry is "Word.RTF.8".)
HKEY_CLASSES_ROOT\.xls
{Default} = "msg"
(Note: The default value data of the said registry entry is "Excel.Sheet.8".)
HKEY_CLASSES_ROOT\.xml
{Default} = "msg"
(Note: The default value data of the said registry entry is "xmlfile".)
HKEY_CLASSES_ROOT\.zip
{Default} = "msg"
(Note: The default value data of the said registry entry is "WinRAR.ZIP".)