Analysis: Kevin Savage
Following our recent blog post on malicious Web injects, here is an example affecting the distribution of a malicious Android application. This is an example of a traditional type but on a larger scale. Those of us in the security industry are well aware of a certain email address—[email protected]—which registers domains consistently used in mass SQL-injection attacks against vulnerable Web applications. This mass SQL-injection of a malicious iframe was dubbed Lizamoon (as a result of the domain name used during similar attacks back in 2011).
Although the domains have changed, the technique remains the same: exploit vulnerable sites on a large scale with an SQL-injection attack, which will then direct users to websites containing malicious code. The current wave of injection is considerable, if we base this on the search results Google has indexed:
The IP address 31.210.100.242 has been identified in the attack and has four domains currently associated with it:
- hgbyju.com
- hnjhkm.com
- nikjju.com
- njukol.com
If you have visited a site with the injected iframe, the following events will take place:
Infected site
[REDIRECTS] →
[hxxp]://njukol.com/r.php
[REDIRECTS] →
[hxxp]://www3.safe-defensefu.com/?f1hlu4a=[ENCODED DATA]
[REDIRECTS] →
[hxxp]://www1.powermb-security.it.cx/ntzjc62?vjgtl=[ENCODED DATA]
[REDIRECTS] →
[hxxp]://www1.powermb-security.it.cx/i.html
The i.html file serves up two exploits:
- CVE-2010-0188 – Trojan.Pidief
If vulnerable, this exploit attempt to download and execute a file from a location which no longer resolves.
- CVE-2012-0507 – Trojan.Maljava
If vulnerable, this exploit will successfully download and execute a Backdoor.Trojan from the following URL:
[hxxp]://www2.smartqz-army.dnset.com
We are currently analyzing this file and will provide further updates once we’ve completed the analysis.
Protection
Symantec protects you against this attack with the following IPS signatures:
- 23956 Fake App Attack: Fake AV Redirect 29
- 24024 Fake App Attack: Misleading Application File Download 3
- 24319 Fake App Attack: Fake AV Website 21
- 25559 Fake App Attack: Fake Scan Webpage 4
The exploits used in this attack are known vulnerabilities and already patched. Please ensure you apply the latest patches and have your antivirus up to date.
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