Quote from: cryptday on July 27, 2017, 11:04:55 PM

Quote from: borox on July 16, 2017, 10:16:57 AM

Hi,

I already found out, that this program is a scam by disassembling and debugging. Plus I proposed a method to patch it, so that it will behave like we would have expected. With this modification, all Claymore's DevFeeMining will go to your own ethereum-address and the NoDevFee71-program evolves into a very nice and smooth running tool.

Quote from: borox on July 12, 2017, 10:02:04 AM

Hi,

I have found no evidence of virus activity in the code and no evidence for the strange redirection to the private stratum-server IP I reported. It could be a result of using the nicehash-software for some time, in between (I use it as auto-fallback, if the main poolmining has a problem).
BUT it has a random redirection to the authors mining-address 0x78.. build in. After I patched the software, all DevFee arrives at my own account, without exception.
The following submitted-shares numbers are broken down for a 100MHs mining rig for easy comparision.

Unpatched NoDevFee (24h run): mean value 176 shares per hour
Patched NoDevFee (24h run): mean value 182 shares per hour

That makes an average of 6 shares per hour mined to the authors purse.

So, dear @Millenium Falcon, thank your for programming this software, but could you please remove the undocumented mining-redirection to your purse? Or, at least, add a note to your posting regarding this topic?

Quote from: borox on July 12, 2017, 12:03:20 PM

Quote from: dhaern on July 12, 2017, 10:33:46 AM

How do you patching the .exe? with x64dbg? Could you add a little guide for do it please?

For the easy-goin you can open the exe with some hex-editor, then either search ASCII for 0x78 or you direct jump to address 00008EE0 (hex). There you find the authors 0x78.. address. Change it to yours and you will be fine

Take care not to change any other byte but the ether-address.

Patch-Tutorial:

Download & Install HxD Editor from here: https://mh-nexus.de/
Download NoDevFee71 and unpack into a folder
Start HxD & use "File->Open" (Ctrl-O), browse to the NoDevFee71-Folder
Open the File "NoDevFee.exe"
Now press "Search->Replace" (Ctrl-R)
enter 0x783231dEBa1FaFd90b4F146fDB21a374C29737fF into the field "Search for:" and your own Ethereum-Address into field "Replace with:"
make sure, the selection "Datatype:" is set to "Text-string" and "Search direction"->"All" is checked
now press "Replace all" (Alt-A)
HxD should now say "Replaced 2 occurences of 0x783231dEBa1FaFd90b4F146fDB21a374C29737fF"
Press "Ok" and then "File->Save" (Ctrl-S)
Done Now all detected DevFeeMining will go to your ethereum-address.

what to do, if an error pops up, after pressing "Replace all":

Error "This replace operation changes file size. Do you want to proceed?" - 1st deny by pressing "No"
.. simply check exactly, if you entered the ethereum-addresses correctly. Check, if you copied in blanks in front, or after the address and remove them
Error "Can't find 0x783231dEBa1FaFd90b4F146fDB21a374C29737fF"
.. repeat the search-and-replace with address 0x69b612b2088a75054de71d7ec10dc50d3be94f55 in field "Search for:"

Regards,

borox

Code:

Donations welcome :)
BTC 18AT1kRgSoGrw1TCPpduPnWnX7t1TK23Xo
ETH 0x3084a8657ccf9d21575e5dd8357a2deaf1904ef6

The addresses you refer are in version 7.1 (the first one) and in 5.5 (the second) .. as i'm still using v5.5 and already patched it..
What i noticed as i was surfing around.. take a look at these addresses on ethermine :

1) 0x3509f7bd9557f8a9b793759b3e3bfa2cd505ae31
2) 0x7fb21ac4cd75d9de3e1c5d11d87bb904c01880fc
3) 0xb9cf2da90bdff1bc014720cc84f5ab99d7974eba
4) 0x558d2e1a5786848dfc24080aff7928da1c7d5c3a

They all have just the classic "default" worker with that huge hashrate !! I looked for them via the hex-editor in both 7.1 and 5.5 binaries but my search didn't return anything..
Any ideas anyone ?? :/

Thank you guys !

THIS is the way to avoid the 2% devfee -- works on Clay 9.7 only

PATCH out the code left by Falcon and put your address

not updating to clay 10.0 to save myself 2% on my rigs.. WOOHOO!!

YOURE WELCOME, SEND ETH - 0xef6b45289f1e9fe410edf5dc6026256ee74cb081