Sorry for the delay, here are the Xsser samples.
Xsser Android
File: code4hk.apk
Size: 409709
MD5: 15E5143E1C843B4836D7B6D5424FB4A5
sample credit: Shalom Bublil
Xsser (mRat) for IOS
https://www.sophos.com/en-us/threat-center/threat-analyses/viruses-and-spyware/iPh~InfoStl-O/detailed-analysis.aspx
File: xsser.0day_1.1_iphoneos-arm.deb
MD5 2ee65c7faeba0899d397f6e105cc53c3
Sample Credit: KernelMode forum and anonymous upload to Malwaredump
Dylib files from the C2 (e.g. http://www.xsser.com/upload/Lib/iLib.4.0.0.dylib|iLib.4.0.0.dylib|4.0.0|1033720)
FAB47459D191C09406DD15D90AF403CB_iLib.2.0.0.dylib
2CBA795AFF750259A2FC447CDD6EA1C7_iLib.3.0.0.dylib
CFC300B52BF0A4F09FE3E8F9B3459862_iLib.4.0.0.dylib