anti
69510fb880
Rename the rsyslog→stdout pipe from /var/run/decnet-logs (dead giveaway) to /run/systemd/journal/syslog-relay, and launch the relay via exec -a "systemd-journal-fwd" so ps shows a plausible systemd forwarder instead of a bare cat. Casual ps/ls inspection now shows nothing with "decnet" in the name.
52 lines
1.5 KiB
Bash
52 lines
1.5 KiB
Bash
#!/bin/bash
|
|
set -e
|
|
|
|
# Configure root password (default: admin)
|
|
ROOT_PASSWORD="${SSH_ROOT_PASSWORD:-admin}"
|
|
echo "root:${ROOT_PASSWORD}" | chpasswd
|
|
|
|
# Optional: override hostname inside container
|
|
if [ -n "$SSH_HOSTNAME" ]; then
|
|
echo "$SSH_HOSTNAME" > /etc/hostname
|
|
hostname "$SSH_HOSTNAME"
|
|
fi
|
|
|
|
# Generate host keys if missing (first boot)
|
|
ssh-keygen -A
|
|
|
|
# Fake bash history so the box looks used
|
|
if [ ! -f /root/.bash_history ]; then
|
|
cat > /root/.bash_history <<'HIST'
|
|
apt update && apt upgrade -y
|
|
systemctl status nginx
|
|
tail -f /var/log/syslog
|
|
df -h
|
|
htop
|
|
ps aux | grep python
|
|
git pull origin main
|
|
cd /root/projects
|
|
vim notes.txt
|
|
crontab -e
|
|
ls /var/www/html
|
|
HIST
|
|
fi
|
|
|
|
# Logging pipeline: named pipe → rsyslogd (RFC 5424) → stdout → Docker log capture.
|
|
# Pipe lives under /run/systemd/journal/ and the relay process is cloaked via
|
|
# exec -a so `ps aux` shows "systemd-journal-fwd" instead of a raw `cat`.
|
|
mkdir -p /run/systemd/journal
|
|
mkfifo /run/systemd/journal/syslog-relay
|
|
|
|
bash -c 'exec -a "systemd-journal-fwd" cat /run/systemd/journal/syslog-relay' &
|
|
|
|
# Start rsyslog (reads /etc/rsyslog.d/99-decnet.conf, writes to the pipe above)
|
|
rsyslogd
|
|
|
|
# File-catcher: mirror attacker drops into host-mounted quarantine with attribution.
|
|
# Script lives at /usr/libexec/udev/journal-relay so `ps aux` shows a
|
|
# plausible udev helper. See Dockerfile for the rename rationale.
|
|
CAPTURE_DIR=/var/decnet/captured /usr/libexec/udev/journal-relay &
|
|
|
|
# sshd logs via syslog — no -e flag, so auth events flow through rsyslog → pipe → stdout
|
|
exec /usr/sbin/sshd -D
|