“Not all AV software are the same” – CompTIA Security+ 2008

CompTIA Security+ 2008, page 99, Chapter Antivirus

Not all AV software is the same. Free AV software that is available for
download through the Internet will typically only look for viruses in
standard files. However, most commercial AV software will also look
for Trojans, worms, macro viruses, and adware in standard files as well
as in compressed (.ZIP) files.

In which decade are you guys from CompTIA living ?
*Any* AV product looks for those malware in all files.
Maybe you should update the book 😉