Sophos

W32/Rbot-AWI

Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Network shares
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from December 2005 (4.00)
Protection available since 8 November 2005 11:04:58 (GMT)
Detected by All Sophos products

Action

More Information

W32/Rbot-AWI is a worm and IRC backdoor Trojan for the Windows platform.

W32/Rbot-AWI spreads:

- to other network computers infected with Troj/Kuang,Troj/Sub7,Troj/NetDevil,W32/MyDoom,W32/Bagle,Troj/Optix.
- to other network computers by exploiting common buffer overflow vulnerabilities, including LSASS (MS04-011),RPC-DCOM (MS04-012),WKS (MS03-049) (CAN-2003-0812),WebDav (MS03-007),IIS5SSL (MS04-011) (CAN-2003-0719),UPNP (MS01-059),Veritas (CAN-2004-1172),Dameware (CAN-2003-1030),ASN.1 (MS04-007).
- by copying itself to network shares protected by weak passwords.
- by copying itself to MSSQL servers protected by weak passwords.

When first run W32/Rbot-AWI copies itself to <System>\<random filename>

The following registry entries are created to run the worm on startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
eMCryT Sh3ars Panagers
<Path to worm>

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
eMCryT Sh3ars Panagers
<Path to worm>

Registry entries are set as follows:

HKCU\Software\Microsoft\OLE
eMCryT Sh3ars Panagers
<Path to worm>

HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1

W32/Rbot-AWI runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.

W32/Rbot-AWI includes functionality to:

- perform port scanning
- carry out DDoS flooder attacks
- silently download, install and run new software
- steal information

The following patches for the operating system vulnerabilities exploited by W32/Rbot-AWI can be obtained from the Microsoft website:

MS04-011
MS04-012
MS03-049
MS01-059
MS03-007
MS04-007

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