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Check PE checksum

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olszomal 2023-03-29 13:46:56 +02:00 committed by Michał Trojnara
parent 46e9ee447f
commit e4aa06f0c0
1 changed files with 6 additions and 7 deletions
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13
pe.c
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@ -177,21 +177,20 @@ static ASN1_OBJECT *pe_spc_image_data_get(u_char **p, int *plen, FILE_FORMAT_CTX
*/ */
static int pe_check_file(FILE_FORMAT_CTX *ctx, int detached) static int pe_check_file(FILE_FORMAT_CTX *ctx, int detached)
{ {
int peok = 1;
uint32_t real_pe_checksum; uint32_t real_pe_checksum;
if (!ctx) { if (!ctx) {
printf("Init error\n\n"); printf("Init error\n\n");
return 0; /* FAILED */ return 0; /* FAILED */
} }
printf("Current PE checksum : %08X\n", ctx->pe_ctx->pe_checksum);
real_pe_checksum = pe_calc_realchecksum(ctx); real_pe_checksum = pe_calc_realchecksum(ctx);
if (ctx->pe_ctx->pe_checksum && ctx->pe_ctx->pe_checksum != real_pe_checksum) { if (ctx->pe_ctx->pe_checksum == real_pe_checksum) {
peok = 0; printf("PE checksum : %08X\n\n", real_pe_checksum);
} else {
printf("Current PE checksum : %08X\n", ctx->pe_ctx->pe_checksum);
printf("Calculated PE checksum: %08X\n", real_pe_checksum);
printf("Warning: invalid PE checksum\n\n");
} }
printf("Calculated PE checksum: %08X%s\n\n", real_pe_checksum,
peok ? "" : " MISMATCH!!!");
if (detached) { if (detached) {
printf("Checking the specified catalog file\n\n"); printf("Checking the specified catalog file\n\n");
return 1; /* OK */ return 1; /* OK */