sh files in Login Items

I have the free Avast antivirus running on a Ventura 13.4 Mac. Recently on login items a number of .sh files have turned up. autouninstal.sh loadagents.sh, user.sh, userinit.sh, etc
most are Plain Text files which mention Avast in them. What are they? and should I remove them or not.
This is part of one:
#!/bin/bash
TIMESTAMP=date +%s
LOGFILE=/tmp/avastsecurelineinit-“$TIMESTAMP”-$$.log
touch “$LOGFILE”
chmod 0600 “$LOGFILE”
exec >“$LOGFILE” 2>&1
set -x
shopt -s nullglob
echo “PID=$$”

INSTALL_SCRIPTS_DIR=“/Library/Application Support/AvastSecureLine/hub”

Setup local variables

MODULES_DIR=“$INSTALL_SCRIPTS_DIR/modules”
LOCK_DIR=“/tmp/com.avast.osx.secureline.lockdir”
LOCK_CHECK_DELAY=1