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Malwares 분석

twixz.exe

by 글벌레 2009. 2. 13.
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테스트실시환경
Windows XP SP2 Professional 입니다 . 

파일 정보

 twixz.exe  File size: 66560 bytes
MD5...: 5b012d459d7e129826f82a223991a44e

바이러스 토탈 검사 결과

검사 파일: twixz.exe 전송 시각: 2009.02.12 21:29:15 (CET)
안티바이러스 엔진 버전 정의 날짜 검사 결과
a-squared 4.0.0.93 2009.02.12 Trojan-Spy.Win32.Zbot!IK
AhnLab-V3 5.0.0.2 2009.02.12 -
AntiVir 7.9.0.76 2009.02.12 TR/Spy.ZBot.mpr
Authentium 5.1.0.4 2009.02.12 -
Avast 4.8.1335.0 2009.02.12 Win32:Zbot-BAI
AVG 8.0.0.229 2009.02.12 Pakes.AZB
BitDefender 7.2 2009.02.12 Trojan.Spy.Zbot.PS
CAT-QuickHeal 10.00 2009.02.11 -
ClamAV 0.94.1 2009.02.12 -
Comodo 975 2009.02.12 -
DrWeb 4.44.0.09170 2009.02.12 -
eSafe 7.0.17.0 2009.02.12 -
eTrust-Vet 31.6.6353 2009.02.12 -
F-Prot 4.4.4.56 2009.02.11 -
F-Secure 8.0.14470.0 2009.02.12 Trojan-Spy.Win32.Zbot.mpr
Fortinet 3.117.0.0 2009.02.12 -
GData 19 2009.02.12 Trojan.Spy.Zbot.PS
Ikarus T3.1.1.45.0 2009.02.12 Trojan-Spy.Win32.Zbot
K7AntiVirus 7.10.628 2009.02.12 -
Kaspersky 7.0.0.125 2009.02.12 Trojan-Spy.Win32.Zbot.mpr
McAfee 5524 2009.02.12 -
McAfee+Artemis 5524 2009.02.12 Generic!Artemis
Microsoft 1.4306 2009.02.12 PWS:Win32/Zbot.G
NOD32 3849 2009.02.12 a variant of Win32/Spy.Zbot.IB
Norman 6.00.02 2009.02.12 -
nProtect 2009.1.8.0 2009.02.12 -
Panda 10.0.0.10 2009.02.12 Suspicious file
PCTools 4.4.2.0 2009.02.12 -
Prevx1 V2 2009.02.12 -
Rising 21.16.32.00 2009.02.12 -
SecureWeb-Gateway 6.7.6 2009.02.12 Trojan.Spy.ZBot.mpr
Sophos 4.38.0 2009.02.12 -
Sunbelt 3.2.1851.2 2009.02.12 RiskTool.Win32.ProcessPatcher.Nor!cobra (v)
Symantec 10 2009.02.12 -
TheHacker 6.3.1.9.254 2009.02.12 -
TrendMicro 8.700.0.1004 2009.02.12 -
VBA32 3.12.8.12 2009.02.11 -
ViRobot 2009.2.12.1603 2009.02.12 -
VirusBuster 4.5.11.0 2009.02.12 -
 
추가 정보
File size: 66560 bytes
MD5...: 5b012d459d7e129826f82a223991a44e
SHA1..: bb643fcd59b612c1dbf99c4663d08e73866df31c
SHA256: c4a75a84ee2da84a79a03e6d635a1102f3dedf12eeda8c9d2e575dd937829a29
SHA512: 3f72c020a4d35d6d337997d308eb8e0dd904110dfe43b87d19c0287a73213eed
c33d31c409bf7beba67dab9f6a58b32866a38f0024d0ccfcd8bd46f4d0f3a70a
ssdeep: 1536:UKAxFsP/ehMfOkkda6R9Z/To56Xc/vo3x:JAxFE/AOb63s/vUx
PEiD..: -
TrID..: File type identification
Win32 Executable Generic (42.3%)
Win32 Dynamic Link Library (generic) (37.6%)
Generic Win/DOS Executable (9.9%)
DOS Executable Generic (9.9%)
VXD Driver (0.1%)
PEInfo: PE Structure information

( base data )
entrypointaddress.: 0x203e
timedatestamp.....: 0x47c9c662 (Sat Mar 01 21:10:58 2008)
machinetype.......: 0x14c (I386)

( 2 sections )
name viradd virsiz rawdsiz ntrpy md5
.text 0x1000 0xfc78 0xfe00 6.77 058c43c684806a4644dbf5d713961492
.data 0x11000 0x40cb 0x200 1.10 38deaf2e8e855664778106e822ab2eb2

( 4 imports )
> USER32.dll: CloseDesktop, PeekMessageA, DrawIcon, GetKeyState, OpenDesktopA, GetCursorPos, CloseWindowStation, GetIconInfo, CharLowerBuffA, ToUnicode, SendMessageA, GetMessageA, FindWindowExA, ExitWindowsEx, LoadCursorA, GetClipboardData, GetDlgItemTextA
> KERNEL32.dll: VirtualAlloc, GetLastError, GetVersionExW, CreateFileA, GlobalLock, lstrcatW, GetTickCount, GetCommandLineA, GetProcAddress, FindFirstFileW, VirtualProtect, GetFileAttributesA, lstrcpyA, HeapReAlloc, GetSystemTime, MulDiv, OpenMutexW, SetFilePointer, ReleaseMutex, GlobalUnlock
> SHLWAPI.dll: wvnsprintfA, wnsprintfW, PathMatchSpecW, wvnsprintfW, StrCmpNIA, StrStrW, PathRemoveFileSpecW, SHDeleteKeyA, PathCombineW, PathFileExistsW
> ADVAPI32.dll: RegQueryValueExA, CryptGetHashParam, CryptCreateHash, RegSetValueExA, RegDeleteValueA, RegEnumKeyExA, CryptHashData, CryptReleaseContext, CryptAcquireContextW

( 0 exports )

twixz.exe 실행이 시스템에 준 변화입니다 .

 파일 생성
 C:\WINDOWS\system32\twex.exe  (283136bytes)
 레지스트리 변경
[HKEY_LOCAL_MACHINE\software\microsoft\windows nt\currentversion\winlogon]
"userinit"="C:\WINDOWS\system32\userinit.exe,"

위 정상 값이 아래처럼 바뀜 .

[HKEY_LOCAL_MACHINE\software\microsoft\windows nt\currentversion\winlogon]
"userinit"="C:\WINDOWS\system32\userinit.exe,C:\WINDOWS\system32\twex.exe,"

 삭제되지 않는 악성코드 파일 삭제에 도움이 될 수 잇는 관련 글
 2009/02/04 - [유용한 팁들] - movefile 활용
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