Raven Inc. Anti-Virus

tArgs = {...}

chance = 0

if tArgs[1] == nil then
  print("Proper Syntax: scan <filename>")
  return
end

if not fs.exists(tArgs[1]) then
  print("File does not exist.")
  return
end

file = fs.open(tArgs[1], "r")
contents = file.readAll()

if string.match(contents, "fs.delete") then
  del = true
  chance = chance+1
end
if string.match(contents, "startup") then
  start = true
  chance = chance+1
end
if string.match(contents, "infect") then
  inf = true
  chance = chance+4
end
if string.match(contents, "fs.copy") then
  cop = true
  chance = chance+1
end
if string.match(contents, "pastebin") then
  paste = true
  chance = chance+1
end

print("Scan Summary:")

if del == true then
  print("Contains 'fs.delete'")
end
if start == true then
  print("Contains 'startup'")
end
if inf == true then
  print("Containts 'infect'")
end
if cop == true then
  print("Contains 'fs.copy'")
end
if paste == true then
  print("Contains 'pastebin'")
end

if chance == 0 then
  term.setTextColor(colors.white)
  print("File is most likely safe!")
  term.setTextColor(colors.white)
elseif chance == 1 then
  term.setTextColor(colors.yellow)
  print("File could be malicious!")
  term.setTextColor(colors.white)
elseif chance == 2 then
  term.setTextColor(colors.yellow)
  print("File could be malicious!")
  term.setTextColor(colors.white)
elseif chance == 3 then
  term.setTextColor(colors.orange)
  print("File has a good chance of being malicious!")
  term.setTextColor(colors.white)
elseif chance >= 4 then
  term.setTextColor(colors.red)
  print("File is most likely malicious!")
  term.setTextColor(colors.white)
end