#!/bin/bash

Crowdstrike-Deploy Banner

echo ""
echo " ██████╗██████╗ ██████╗ ██╗ ██╗██████╗ ███████╗████████╗██████╗ ██╗██╗ ██╗███████╗"
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echo " ╚═════╝╚═╝ ╚═╝ ╚═════╝ ╚══╝╚══╝ ╚═════╝ ╚══════╝ ╚═╝ ╚═╝ ╚═╝╚═╝╚═╝ ╚══════╝"
echo ""
echo " ██████╗ ███████╗██████╗ ██╗ ██████╗ ██╗ ██╗"
echo " ██╔══██╗██╔════╝██╔══██╗██║ ██╔═══██╗╚██╗ ██╔╝"
echo " ██║ ██║█████╗ ██████╔╝██║ ██║ ██║ ╚████╔╝"
echo " ██║ ██║██╔══╝ ██╔═══╝ ██║ ██║ ██║ ╚██╔╝"
echo " ██████╔╝███████╗██║ ███████╗╚██████╔╝ ██║"
echo " ╚═════╝ ╚══════╝╚═╝ ╚══════╝ ╚═════╝ ╚═╝"
echo ""
echo " Created & Maintained by: Eilay Yosfan"
echo " GitHub.com/YosfanEilay"
echo " Version: 1.0"
echo ""

Please Paste Your Information in Here

SensorLink="" # Crowdstrike Sensor Download Link
SensorSig1="" # Crowdstrike Sensor Hash (SHA256)
TenantCID="" # Crowdstrike Tenant CID
TenantName="" # Crowdstrike Tenant Name
###################################################

Prerequisite Variable Load

Hostname=$(hostname)
RunPath=$(pwd)
DstPath="$RunPath/CrowdstrikeSensor"

Test if Host is Connected to the internet

if ping -c 2 8.8.8.8 &> /dev/null
then
echo "[+] Host is connected to the internet."
else
echo "[!] Host is not connected to the internet."
exit
fi

Test Connection to OneDrive

if ping -c 2 "onedrive.live.com" &> /dev/null
then
echo "[+] OneDrive is reachable."
else
echo "[!] OneDrive is not reachable, might be related to host network or organization policy. Deploy might fail."
fi

Download Crowdstrike Sensor

echo "[+] Download has started. The time required will depend on the host's bandwidth."
curl -o $DstPath $SensorLink

Check if the Downloaded Sensor File is Corrupted

SensorSig2=$(sha256sum $DstPath | awk '{ print $1 }')
if [ "$SensorSig1" == "$SensorSig2" ]; then
echo "[+] Crowdstrike sensor was successfully downloaded. Sensor installation started."
else
echo "[!] The sensor file is corrupted, likely due to an interrupted download. you can try again."
rm -f $DstPath
exit
fi

Start Crowdstrike Installation Process

chmod +x $DstPath
$DstPath /install /quiet CID=$TenantCID
sleep 60

Print Success Message

echo "[+] Done. $Hostname will be available on host management under the tenant $TenantName in 5-10 minutes."
echo ""