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Parse DPCDLL.DLL to get PIDs for key generation (x86/x64 Windows XP and derivatives only)
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from glob import glob | |
from struct import unpack | |
import json | |
import sys | |
def readint(f): | |
return unpack("<I", f.read(4))[0] | |
if __name__ == "__main__": | |
if len(sys.argv) < 3: | |
print(f"usage: {sys.argv[0]} dpcdll.dll out.json") | |
lic_types = ["NULL", "Volume", "Retail", "Evaluation", "Tablet", "OEM-SLP", "Embedded"] | |
dpcdata = [] | |
with open(sys.argv[1], "rb") as f: | |
tmp = f.read() | |
f.seek(tmp.find(b"\x1e\x00\x00\x00\xff\xff\xff\x7f") - 20) | |
del tmp | |
while f.read(4) != b"\x00\x00\x00\x00": | |
f.seek(-164, 1) | |
f.seek(-4, 1) | |
last_ind = -1 | |
ind = 0 | |
dpcentry = {} | |
while True: | |
ind = readint(f) | |
bink_id = hex(readint(f))[2:].zfill(8).upper() | |
min_pid = readint(f) | |
max_pid = readint(f) | |
if min_pid > 999 or max_pid > 999: | |
break | |
lic_type = readint(f) | |
if lic_type > 6: | |
break | |
if lic_type == 2 and int(bink_id, 16) % 2 == 1: | |
lic_type_str = "OEM-COA" | |
else: | |
lic_type_str = lic_types[lic_type] | |
days_to_act = readint(f) | |
eval_days = readint(f) | |
sig_len = readint(f) | |
f.read(sig_len) | |
dpcdata.append({ | |
"index": ind, | |
"bink": bink_id, | |
"pid_range": [min_pid, max_pid], | |
"type": lic_type_str, | |
"days_to_activate": days_to_act, | |
"days_evaluation": eval_days | |
}) | |
with open(sys.argv[2], "w") as f: | |
f.write(json.dumps(dpcdata, indent=4)) |
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