其它名稱
Downloader-BAI!M711 (McAfee), Mal/HckPk-A (Sophos), Win32/Luder.M!corrupt, Win32/Luder.M!Worm, W32.Mixor.Q@mm (Symantec), Trojan-Downloader.Win32.Small.ciw (Kaspersky)
具體介紹
感染方式
運行時,Win32/Luder.M複製"alsys.exe"到%System%目錄 ,並設定
檔案屬性為隱藏。隨後,修改以下
註冊表鍵值,以確保在每次系統啟動時運行這個副本:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\Agent = "%System%\alsys.exe"
HKCU\Software\Microsoft\Windows\CurrentVersion\Run\Agent = "%System%\alsys.exe"
蠕蟲還生成"klllekkdkkd"互斥體,以確保每次只有一個副本運行。
註:'%System%'是一個可變的路徑。病毒通過查詢作業系統來決定當前
系統資料夾的位置。Windows 2000 and NT默認的系統安裝路徑是C:\Winnt\System32; 95,98 和 ME 的是C:\Windows\System; XP 的是C:\Windows\System32。
傳播方式
Luder.M從 'Z:\' 到 'C:\' 驅動器上搜尋小於122,880位元組並包含"exe", "scr" 和 "rar"擴展名的檔案,查找郵件地址。
蠕蟲執行DNS MX (mail exchanger)查詢,為每個域找到適合的
郵件伺服器來傳送病毒。它使用本地配置的默認的DNS伺服器來執行這些查詢。
Luder.M嘗試傳送郵件到它收集的每個郵件地址,除了包含以下字元串的地址:
microsoft
.gov
.mil
蠕蟲傳送的郵件帶有以下特點:
發件地址:
蠕蟲使用任意名稱(從蠕蟲自帶的一個列表中選擇),或生成一個任意字元的字元串並結合"yahoo。com",例如 huwqi@yahoo。com。
主題可能是:
5 Reasons I Love You
A Bouquet of Love
A Day in Bed Coupon
A Hug & Roses
A Kiss for You
A Kiss So Gentle
A Little (sex) Card
A Monkey Rose for You
I Love Thee
I Love You Mower
I Love You So
I Love You Soo Much
I Love You with All I Am
I Still Love You
I Think of You
I Win with You
I wish
I Woof You
I Would Do Anything
I Would Give you Anything
If I Could
If I Knew
I'll Be Your Man
In Love
In My Heart
Inside My Heart
Internet Love
It's Your Move
Just You
Just You & Me
Kiss Coupon
Kisses, Hugs & Roses
Last Night was Hot!
Let's Get Frisky
Live With Me
Longing for You
Love at First Sight
Love Birds
Love for Granted
Love is in the Air
Love Remains
Love You Deeply
Made for Each Other
Magic of Flowers
Massage Coupon
Memories
Miracle of Love
Miracle of Love
Moonlit Waterfall
Most Beautiful Girl
My Eye on You
My Heart belongs to you
My Heart is Thinking
My Invitation
My Love
My Perfect Love
Now and Forever
Now I Know
Old Together
Only You
Our Love
Our Love Everyday
Our Love is Free
Our Love is Strong
Our love is torn by miles
Our Love Nest
Our Love Will Last
Our Two Hearts
Our Wedding Day
P.M.S
Passionate Kiss
Peek-A-Boo
Pockets of Love
Puppy Love
Red Rose
Romantic Picnic Coupon
Wine and Roses
Wish I Could Tell You
Wish Upon a Star
With All My Love
With All of My Heart
With This Ring
Without Your Love
Won't you dance with me
Words I Write
Worthy of You
Wrapped in Your Arms
Wrapped Up
You + Me
You and I
You and I Forever
You Are My Guiding Star
You are out of this world
You Asked Me Why
You Brighten My Day
You Lucky Duck!
You Rock Me!
You Were Worth the Wait
Your Love Has Opened
Your Silly Smile
You're My Hero
You're so Far Away
You're Soo kissable
You're the One
附屬檔案名稱:
flash postcard.exe
Flash Postcard.exe
Greeting Card.exe
greeting card.exe
Greeting Postcard.exe
greeting postcard.exe
Postcard.exe
postcard.exe
危害
生成並運行其它惡意程式
Luder.M在被感染機器上生成Win32/Pecoan.H特洛伊。Win32/Pecoan是一類
特洛伊病毒,通過很多點對點網路客戶端建立通信。通過網路Pecoan能夠下載並運行任意檔案。
終止進程
每隔4秒,如果
註冊表編輯器(regedit.exe)和名稱中包含以下字元串的其它進程(顯示在Windows Title Bar中)正在運行,Luder.M就會嘗試終止註冊表編輯器和這些進程:
anti
avg
avp
blackice
firewall
f-pro
hijack
lockdown
mcafee
msconfig
nav
nod32
rav
reged
spybot
taskmgr
troja
viru
vsmon
zonea
修改系統設定
Luder.M修改以下註冊表鍵值,使得"Windows Firewall/Internet Connection Sharing (ICS)"(還稱為"Internet Connection Firewall (ICF) / Internet Connection Sharing (ICS)")服務失效:
HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Start = 4
清除
KILL安全胄甲Vet 30.3.3349版本可檢測/清除此病毒。
也可使用專殺