QQBrowser

rule QQBrowser {
   meta:
      description = "Not malware but suspicious browser - file QQBrowser.exe"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://goo.gl/4pTkGQ"
      date = "2017-06-02"
      score = 50
      hash1 = "adcf6b8aa633286cd3a2ce7c79befab207802dec0e705ed3c74c043dabfc604c"
      id = "457507c5-0411-5d72-891b-ae3e428ea2d6"
   strings:
      $s1 = "TerminateProcessWithoutDump" fullword ascii
      $s2 = ".Downloader.dll" fullword wide
      $s3 = "Software\\Chromium\\BrowserCrashDumpAttempts" fullword wide
      $s4 = "QQBrowser_Broker.exe" fullword wide
   condition:
      ( uint16(0) == 0x5a4d and filesize < 2000KB and all of them )
}