WORM_VBNA.SMY
BackDoor-ABF (McAfee); Trojan.Gen.2 (Symantec); Worm.Win32.VBNA.bdmc (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Trojan horse Dropper.Generic2.AOUP (AVG)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Worm
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
126,976 bytes
EXE
No
21 Jun 2013
Arrival Details
This worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This worm drops the following copies of itself into the affected system:
- %User Profile%\Wilbert1\winlogon.exe
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)
It creates the following folders:
- %User Profile%\Wilbert1
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)
Other Details
This worm connects to the following possibly malicious URL:
- http://y-5-e-2-7-w-0-0-s-r-f-7-g-5-7-9-j-1-n-n-z-s-p-1-m-5-v-v-d-4-e-.{BLOCKED}{BLOCKED}{BLOCKED}{BLOCKED}0-26-{BLOCKED}{BLOCKED}{BLOCKED}{BLOCKED}0.info/VERSION.TXT
- http://5-1-g-u-g-l-4-7-2-7-9-a-z-2-1-5-4-3-g-7-2-7-0-j-u-3-n-8-p-e-e-.{BLOCKED}3-j-fi-1-il-h-il-3e-z-u-r-u-lk-h-wm-3-6-g-0o-s-dx.info/VERSION.TXT
- http://i-7-4-6-j-2-5-l-5-8-9-z-5-8-9-4-h-s-g-3-4-z-o-6-7-b-z-l-8-v-o-.{BLOCKED}l8-k-7o-8z-l-v-uhb-u-td-8i-oe-0gp-e2g-we6-ws-2vpd.info/VERSION.TXT
- http://l-h-9-0-4-4-g-3-o-2-w-2-q-5-2-0-d-5-9-4-p-7-s-m-d-i-0-1-8-v-9-.{BLOCKED}k-5g-z2-pu6-e5x-4h-yij-yx-duv-wpx-2r8-7vc-ox-4q-u.info/VERSION.TXT
- http://h-w-4-9-5-7-e-3-4-x-3-b-b-7-r-b-j-3-q-5-8-w-7-7-v-0-4-0-2-6-1-.{BLOCKED}-fj-o4-it-ok-n-9j-zjg-pz9x-1z-zekv-y4f-acg-cq3v-j.info/VERSION.TXT
- http://8-0-3-5-w-2-3-g-g-f-f-7-8-1-4-s-1-2-2-8-3-z-x-7-7-0-i-y-8-2-4-.{BLOCKED}na-5w-2z3-djmu-7pk-qy-0-bok-re9-ym-v9h-av-njx-2es.info/VERSION.TXT
- http://6-n-h-4-z-0-c-5-8-l-3-3-e-7-4-8-u-m-5-2-p-x-j-a-g-7-r-b-n-3-m-.{BLOCKED}o-nw-dug-uqv-kzn-m-jtu-uf-q3i-r0o-vc-l4k-h21y-a9r.info/VERSION.TXT
- http://n-q-6-3-1-f-c-w-8-3-p-s-e-6-z-v-3-o-j-c-h-o-6-8-b-9-0-3-3-0-7-.{BLOCKED}-y1a-zu-s-no-bq-q1p8-qjr-j1hr-nh8-22-af3q-7q-gu-7.info/VERSION.TXT
- http://p-u-v-j-r-g-2-7-o-4-u-y-8-z-1-v-5-e-w-q-v-1-o-k-9-1-p-m-4-7-5-.{BLOCKED}bq-7-9g-haf-13-m8-4t2e-cl-fzd-6kq-g6q-ba-c-dvd4m3.info/VERSION.TXT
- http://m-7-p-i-7-8-b-k-h-9-q-d-r-3-3-9-4-s-j-8-5-6-h-e-5-i-9-9-n-t-7-.{BLOCKED}-r6-ut0-jwl-9-th9-i4k-nt1s-sz4-mk4-ahr-hf8-yi-c-6.info/VERSION.TXT
- http://4-c-1-4-w-s-3-1-e-j-0-3-r-w-q-g-8-8-9-9-a-3-7-m-o-b-f-p-5-f-5-.{BLOCKED}s-k-q0-e3r-6s-23-m2wf-7xy1z0-c0u-5wc-g0rb-2-1-5-l.info/VERSION.TXT
- http://3-9-h-n-y-v-x-0-5-4-5-3-3-s-4-4-e-8-c-5-w-s-9-h-8-h-5-3-u-j-m-.{BLOCKED}o-5-8w-0yc-tzl8-h2a-7f-ezc-oxt1-7-8y-0elh-be-3k-d.info/VERSION.TXT
- http://z-w-m-b-c-e-r-0-w-t-5-8-k-0-3-0-8-x-1-0-7-i-0-5-p-y-d-f-3-3-3-.{BLOCKED}sy-7i-5j3-sf7-8z5-54-n8v7r-0-ih7-36992m-o3-0q-g-3.info/VERSION.TXT
- http://t-7-7-a-3-q-b-y-g-j-8-8-p-2-5-c-2-o-i-9-p-x-1-5-o-9-u-c-u-7-0-.{BLOCKED}-tr2p-7c-5lk-huxs-0wq-bma-0wvi-2y-a8s-elw-hv-o0-6.info/VERSION.TXT
This report is generated via an automated analysis system.
SOLUTION
9.300
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Search and delete this folder
- %User Profile%\Wilbert1
Step 3
Scan your computer with your Trend Micro product to delete files detected as WORM_VBNA.SMY. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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