AgentTesla.rule

rule AgentTesla
{
    meta:
        author = "InQuest Labs"
        source = "http://blog.inquest.net/blog/2018/05/22/field-notes-agent-tesla-open-directory/"
        created = "05/18/2018"
        TLP = "WHITE"
    strings:
        $s0 = "SecretId1" ascii
        $s1 = "#GUID" ascii
        $s2 = "#Strings" ascii
        $s3 = "#Blob" ascii
        $s4 = "get_URL" ascii
        $s5 = "set_URL" ascii
        $s6 = "DecryptIePassword" ascii
        $s8 = "GetURLHashString" ascii
        $s9 = "DoesURLMatchWithHash" ascii

        $f0 = "GetSavedPasswords" ascii
        $f1 = "IESecretHeader" ascii
        $f2 = "RecoveredBrowserAccount" ascii
        $f4 = "PasswordDerivedBytes" ascii
        $f5 = "get_ASCII" ascii
        $f6 = "get_ComputerName" ascii
        $f7 = "get_WebServices" ascii
        $f8 = "get_UserName" ascii
        $f9 = "get_OSFullName" ascii
        $f10 = "ComputerInfo" ascii
        $f11 = "set_Sendwebcam" ascii
        $f12 = "get_Clipboard" ascii
        $f13 = "get_TotalFreeSpace" ascii
        $f14 = "get_IsAttached" ascii

        $x0 = "IELibrary.dll" ascii wide
        $x1 = "webpanel" ascii wide nocase
        $x2 = "smtp" ascii wide nocase
        
        $v5 = "vmware" ascii wide nocase
        $v6 = "VirtualBox" ascii wide nocase
        $v7 = "vbox" ascii wide nocase
        $v9 = "avghookx.dll" ascii wide nocase

        $pdb = "IELibrary.pdb" ascii
    condition:
        (
            (
                5 of ($s*) or 
                7 of ($f*)
            ) and
            all of ($x*) and 
            all of ($v*) and
            $pdb
        )
}