Ransom.Win64.ASTROLOCKER.THCBDBA

它以其他恶意软件释放的文件或用户访问恶意网站时不知不觉下载的文件的形式到达系统。它开始执行然后再删除。

新病毒详细信息

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

安装

它植入下列文件：

• %User Temp%\{random 8 characters}.bat
• {Malware Path\Malware Name}.dll.log - log file where core count, total memory, OS Information, username, commandline, encrypted files, and malware sample's performance statistics are listed

(注意: %User Temp% 是当前用户的 Temp 文件夹。通常位于 C:\Documents and Settings\{user name}\Local Settings\Temp (Windows 2000(32-bit)、XP 和 Server 2003(32-bit))、C:\Users\{user name}\AppData\Local\Temp (Windows Vista、7、8、8.1、2008(64-bit)、2012(64-bit) 和 10(64-bit)。)

它添加下列进程：

• cmd /c ""%User Temp%\ {random 8 characters}.bat" "{Malware Path}\{Malware Name}.dll""

(注意: %User Temp% 是当前用户的 Temp 文件夹。通常位于 C:\Documents and Settings\{user name}\Local Settings\Temp (Windows 2000(32-bit)、XP 和 Server 2003(32-bit))、C:\Users\{user name}\AppData\Local\Temp (Windows Vista、7、8、8.1、2008(64-bit)、2012(64-bit) 和 10(64-bit)。)

它开始执行然后再删除。

它添加下列互斥条目，确保一次只会运行一个副本：

• {32 Hex Characters generated from Volume Serial ID}

其他系统修改

它添加下列注册表项作为安装例程的一部分：

HKEY_CURRENT_USER\Software\Classes\
.{Generated ID}\shell\Open
(Default) = explorer.exe RecoveryManual.html

进程终止

它终止在受感染的系统上运行的下列服务：

• database
• msexchange

它终止在受感染的系统内存中运行的下列进程：

• msftesql.exe
• sqlagent.exe
• sqlbrowser.exe
• sqlwriter.exe
• oracle.exe
• ocssd.exe
• dbsnmp.exe
• synctime.exe
• agntsvc.exe
• isqlplussvc.exe
• xfssvccon.exe
• sqlservr.exe
• mydesktopservice.exe
• ocautoupds.exe
• encsvc.exe
• firefoxconfig.exe
• tbirdconfig.exe
• mydesktopqos.exe
• ocomm.exe
• mysqld.exe
• mysqld-nt.exe
• mysqld-opt.exe
• dbeng50.exe
• sqbcoreservice.exe
• excel.exe
• infopath.exe
• msaccess.exe
• mspub.exe
• onenote.exe
• outlook.exe
• powerpnt.exe
• thebat.exe
• steam.exe
• thebat64.exe
• thunderbird.exe
• visio.exe
• winword.exe
• wordpad.exe
• QBW32.exe
• QBW64.exe
• ipython.exe
• wpython.exe
• python.exe
• dumpcap.exe
• procmon.exe
• procmon64.exe
• procexp.exe
• procexp64.exe

信息窃取

它接受下列参数:

• /console - displays the following console window
  
• /nolog - disable the creation of the log file in the malware directory
• /scan: - specifies what drive type to encrypt
• /marker:{filename} - drops file in infected drive that serves as an infection marker
• /fullpd - encrypts %ProgramData%
• /nodel - disables self deletion after execution
• /nokill - disable process termination
• /fast:{value} - specifies which bytes to encrypt for faster file encryption
• /onlypath /path:{path} - only encrypts a specific path