Signing APK
Method 1: apksigner
apksigner sign --ks my-release-key.jks --in demo_malware.apk --out demo_malware2.apk
Method 2: d2j-apk-sign
d2j-apk-sign AppName.apk
Method 3: Java sign tool
java -jar sign-1.0.jar AppName.apk
apksigner sign --ks my-release-key.jks --in demo_malware.apk --out demo_malware2.apk
d2j-apk-sign AppName.apk
java -jar sign-1.0.jar AppName.apk