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Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll

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Reverse Engineering Team :: Dongle Section

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Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll Empty Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll

Post by resac Sun Oct 16, 2016 10:19 pm

Hi All. 
below is the code where application generates Licence Key. anyone help me to generate key for this,


Code:
private void FormLic_Load(object sender, EventArgs e)
{
    string str = "";
    GClass0.smethod_4("1600000002C2F72CCB4998405A394209591F25A0DB235D533C6C4225E94EBF5A92D42E5B0A");
    string str3 = "";
    string salt = GClass0.smethod_4("5E0000000487759748EA30E819DA0B99542D8E87CF8904511F6015AE536164A9808F5460352E3B3938881EECAAFECCC45CEA990F439E9AB2F3A7B3BCA6E9C07EF325E63F971B0AF2A28EA8E154B2B044B38410D998F3EA1263631880900E1E5EBF19B9D837") + this.LabelSerialno.Text;
    string path = GClass0.smethod_4("2400000004B2B044B38410D998F3EA12636318809023297FB66EE2F024F7687DDB51727AEAFF948C969BFFC44A93D723F6580D9FC0");
    string str6 = "";
    if (File.Exists(path))
    {
        try
        {
            foreach (XElement element2 in XDocument.Load(path).Root.Elements())
            {
                if (element2.Name == GClass0.smethod_4("0E00000001A0CE016953F721EE02D9A031F6DEC3C9"))
                {
                    str3 = RijndaelManagedEncryption.RijndaelManagedEncryption.DecryptRijndael(element2.Value, salt);
                    this.TxtKey1.Text = str3;
                }
                if (element2.Name == GClass0.smethod_4("1200000002ADBBDABB30997F9924025036AB6AA05AB9D33BE83EFD023A25483DEFB74DBA46"))
                {
                    str = RijndaelManagedEncryption.RijndaelManagedEncryption.DecryptRijndael(element2.Value, salt);
                    this.TxtKey2.Text = str;
                }
                if (element2.Name == GClass0.smethod_4("0C00000003212FCFB92AFA64F83B99A10C996A3B97"))
                {
                    str6 = RijndaelManagedEncryption.RijndaelManagedEncryption.DecryptRijndael(element2.Value, salt);
                    this.TxtKey3.Text = str6;
                }
            }
        }
        catch
        {
        }
    }
}



Code:
private void BrowseLic_Click(object sender, EventArgs e)
{
    OpenFileDialog dialog = new OpenFileDialog {
        Filter = GClass0.smethod_4("1200000003AD868D3300D6DEFE1687278BE054E8650622D7BB4172348F1568AA05AA37F670"),
        Multiselect = (bool) GClass0.smethod_5("0184915E1EB04681446C44741AF4B20254")
    };
    if (dialog.ShowDialog() == GClass0.smethod_5("02C3B9EF619FE76CCE7647C51A0327F099"))
    {
        GClass0.smethod_4("16000000019371554DCD35DFA5E1AA6BE196C971DA84092DFB36B42581C41DAF172E2713CC");
        string salt = GClass0.smethod_4("5E0000000487759748EA30E819DA0B99542D8E87CF8904511F6015AE536164A9808F5460352E3B3938881EECAAFECCC45CEA990F439E9AB2F3A7B3BCA6E9C07EF325E63F971B0AF2A28EA8E154B2B044B38410D998F3EA1263631880902C1562F846568564") + this.LabelSerialno.Text;
        string fileName = dialog.FileName;
        if (File.Exists(fileName))
        {
            this.BtnActivateLic.Visible = (bool) GClass0.smethod_5("049922DCDA8D32E815D98F6E510F024D3B");
            try
            {
                foreach (XElement element2 in XDocument.Load(fileName).Root.Elements())
                {
                    if (element2.Name == GClass0.smethod_4("0E00000004ED637C6B2265C1176CEC3A8B030B36BE"))
                    {
                        RijndaelManagedEncryption.RijndaelManagedEncryption.DecryptRijndael(element2.Value, salt);
                        this.TxtKey1.Text = element2.Value;
                    }
                    if (element2.Name == GClass0.smethod_4("1200000004FD02EFD56C8BA6B69C0B5DB5E7C4DE3421F82D02F7590E50F43CD90953407B8D"))
                    {
                        RijndaelManagedEncryption.RijndaelManagedEncryption.DecryptRijndael(element2.Value, salt);
                        this.TxtKey2.Text = element2.Value;
                    }
                    if (element2.Name == GClass0.smethod_4("0C0000000441827ABB06ACDAAB98B301CDB58E487A"))
                    {
                        RijndaelManagedEncryption.RijndaelManagedEncryption.DecryptRijndael(element2.Value, salt);
                        this.TxtKey3.Text = element2.Value;
                    }
                }
            }
            catch
            {
                MessageBox.Show(GClass0.smethod_4("20000000014FA96E595CA7D6583B1CA8D328F0AE04C435218779591C121B55707D288F932A"), "License Error", (MessageBoxButtons) GClass0.smethod_5("014A6E88A3CF637EEF66586E8665EFC772"), (MessageBoxIcon) GClass0.smethod_5("01338B607D039B512EC847DD26795B4950"));
                Application.Exit();
            }
        }
    }
}
Code:
private void BtnActivateLic_Click(object sender, EventArgs e)
{
    XmlWriter writer = XmlWriter.Create(Application.StartupPath + GClass0.smethod_4("260000000246B0B48D91CD6F2B2F2C5AADED8DE2A374358EDA32BACB6EB0FCE9CD0142A7815327F6C183DC132A3BA19F5B5ECED7C4"));
    writer.WriteStartDocument();
    writer.WriteStartElement(GClass0.smethod_4("0E00000001C435218779591C122BDABE9D8BDBEB33"));
    writer.WriteElementString(GClass0.smethod_4("0E000000032D0B713F7419CF108BB812700A47E6B7"), this.TxtKey1.Text);
    writer.WriteElementString(GClass0.smethod_4("120000000306CD182D072A0306A90BF1F1C555ED36EDCD896B7C4932229E35BAEF8741E86C"), this.TxtKey2.Text);
    writer.WriteElementString(GClass0.smethod_4("0C000000013B853C5A55203833CEB031E1CE5E9017"), this.TxtKey3.Text);
    writer.WriteEndElement();
    writer.WriteEndDocument();
    writer.Flush();
    writer.Close();
}

Code:
private static string smethod_0() =>
    "28ADC496D3BCB045";


Code:
private static uint smethod_1(char char_0)
{
    if (('0' <= char_0) && (char_0 <= '9'))
    {
        return (uint) (char_0 - '0');
    }
    if (('A' <= char_0) && (char_0 <= 'F'))
    {
        return (uint) ((char_0 - 'A') + 10);
    }
    return 0;
}


Code:
public static string smethod_2()
{
    byte[] buffer = new byte[0x420];
    if (0 == GClass2.SDNPro_3(smethod_0(), buffer))
    {
        return Encoding.UTF8.GetString(buffer);
    }
    return null;
}


Code:
public static string smethod_3()
{
    StringBuilder builder = new StringBuilder(0x210);
    if (0 == GClass2.SDNPro_4(smethod_0(), builder))
    {
        return builder.ToString();
    }
    return null;
}


Code:
public static string smethod_4(string string_0)
{
    StringBuilder builder = new StringBuilder(string_0);
    uint num = GClass2.SDNPro_5(smethod_0(), builder);
    if (num != 0)
    {
        char[] chArray = new char[num / 4];
        for (int i = 0; i < (num / 4); i++)
        {
            chArray[i] = (char) (((smethod_1(builder[i * 4]) * 0x10) + smethod_1(builder[(i * 4) + 1])) + (((smethod_1(builder[(i * 4) + 2]) * 0x10) + smethod_1(builder[(i * 4) + 3])) * 0x100));
        }
        string str = new string(chArray);
        return string.Intern(str);
    }
    return string_0;
}
Code:
public static int smethod_5(string string_0)
{
    StringBuilder builder = new StringBuilder(string_0);
    return GClass2.SDNPro_6(smethod_0(), builder);
}
Code:
public static long smethod_6(string string_0)
{
    StringBuilder builder = new StringBuilder(string_0);
    ulong num = GClass2.SDNPro_7(smethod_0(), builder);
    uint num2 = ((((smethod_1(builder[0]) * 0x10) + smethod_1(builder[1])) + (((smethod_1(builder[2]) * 0x10) + smethod_1(builder[3])) * 0x100)) + ((((smethod_1(builder[4]) * 0x10) + smethod_1(builder[5])) * 0x100) * 0x100)) + (((((smethod_1(builder[6]) * 0x10) + smethod_1(builder[7])) * 0x100) * 0x100) * 0x100);
    num = ((((num * ((ulong) 0x100L)) * ((ulong) 0x100L)) * ((ulong) 0x100L)) * ((ulong) 0x100L)) + num2;
    return (long) num;
}





i just dumped the .Net exe to check methods. i have dongle emulator . need to generate License file


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Last edited by resac on Wed Oct 26, 2016 4:18 am; edited 1 time in total

resac

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Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll Empty Re: Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll

Post by ovis25 Mon Oct 17, 2016 1:01 pm

upload complete setup somewhere.

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Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll Empty Re: Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll

Post by resac Mon Oct 17, 2016 10:30 pm

...


Last edited by resac on Tue Oct 18, 2016 3:20 am; edited 3 times in total

resac

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Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll Empty Re: Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll

Post by ovis25 Tue Oct 18, 2016 2:35 am

404 error

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Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll Empty Re: Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll

Post by resac Tue Oct 18, 2016 2:51 am

Anyone help to decode the strings from SNDpro.dll

resac

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Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll Empty Re: Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll

Post by resac Wed Oct 26, 2016 4:34 am

its .net applictaion  or how to unpack the .net application from senitel protection?

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Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll Empty Re: Senitel dongle protected Application, need to decode the strings inside application from sndpro.dll

Post by kjms Wed Oct 26, 2016 5:10 am

upload the SNDpro.dll file link

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Post by resac Wed Oct 26, 2016 12:53 pm

PFA dll file
dll file


direct text link

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Post by resac Tue Nov 29, 2016 10:27 pm

Cant we unpack .net from sentinel shell??

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